God and
Evolution: An Exchange

Copyright (c) 1993 First
Things 34 (June/July 1993): 32-41.
Participants:
I
Howard J. Van Till
Although the rhetoric Phillip
E. Johnson employs in his article "Creator or Blind Watchmaker?" (FT, January
1993) differs in some details from that of the "scientific creationists" of
North American Christian fundamentalism, the effect of his pronouncements is the same.
That is, it perpetuates the association of Christian belief with the rejection of
contemporary scientific theorizing, thereby ensuring that the gulf between the academy and
the sanctuary will only grow wider. Moreover, ironically, the concept of creation implicit
in his argumentation is one that has moved far afield from the Christian theological
heritage.
The title of the lecture
series from which Johnson's article was adapted was: "Theistic Naturalism and the
Blind Watchmaker." That title was considerably more accurate, because the thrust of
his contribution is not to offer the reader a choice between belief in the Judeo-Christian
Creator or in Richard Dawkins' "blind watchmaker." Rather, his agenda is
polemical in character, focused on affixing the label of theistic naturalism (a term used
ten times) to the positions espoused by some of his Christian critics and arguing that
such positions are substantively indistinguishable from the detestable "blind
watchmaker hypothesis" of evolutionary naturalism, which, by the heavy-handed effort
of the "scientific establishment," is fast "becoming the officially
established religion of America."
To borrow a phrase from his
earlier article in First Things ("Evolution as Dogma: The Establishment of
Naturalism," October 1990), there is in Johnson's writing "just enough truth to
mislead persuasively." If, for instance, one were to peruse a representative sample
of the popular and semi-popular literature written by the strident preachers of
antitheistic naturalism (some textbook literature also qualifies), one could, as did
Johnson, find an abundance of reckless assertions that modern science, especially
evolutionary biology, has soundly discredited all forms of theism. Finding such offensive
rhetoric is not at all difficult, and, in full agreement with Johnson, I find such
statements wholly unwarranted and grossly out of place in the public education system.
But Johnson's attack does not
stop at an expose of the triumphalist scientism espoused by a number of highly visible and
self-appointed spokesmen for natural science. No, he proceeds zealously in a more
ambitious campaign to establish the position that not only is the exploitation of
scientific theories for the purposes of antitheism to be rejected, but the scientific
theories being thus exploited are to be rejected as well. One of Johnson's central claims
is that "doctrinaire naturalism is not just some superfluous philosophical addition
to Darwinism that can be discarded without affecting the real 'science' of the
matter," but is the very source of the evolutionary paradigm. Johnson's entire
program proceeds from his belief that scientific theories regarding macroevolutionary
continuity are the products, not of legitimate inference from empirical data, but of
naturalistic assumptions that have been imposed on science by Darwin and his followers.
In his book Darwin on
Trial Johnson says, "Biological evolution is just one major part of a grand
naturalistic project, which seeks to explain the origin of everything from the Big Bang to
the present without allowing any role to a Creator. . . . The absence from the cosmos of
any Creator is therefore the essential starting point for Darwinism." Hence,
"Naturalism is not something about which Darwinists can afford to be tentative,
because their science is based upon it." In Johnson's view, then, the only reason for
giving credence to theories that incorporate the idea of genealogical continuity among all
lifeforms is their value in promoting the antitheistic worldview of naturalism.
But here's the rub: If
biological evolution is, as far as Johnson can see, inextricable from the presuppositions
of naturalism, and if evolutionary naturalism is radically opposed to the existence of a
supernatural Creator, then how is it possible for a person to be what Johnson calls a
"theistic naturalist"? How could one possibly be an authentic Christian
theist-one whose worldview is built on belief in the Creator God-and at the same time a
proponent of naturalism? Isn't "theistic naturalism" an oxymoron of the highest
order?
It would seem so, and this
appears to be precisely the kind of conclusion that Johnson would have the readers of First
Things reach. As he defines it, theistic naturalism is a transparently incoherent
stance that no rational or intelligent Christian could possibly take. Hence, to be a
proponent of such (Johnson offers Diogenes Allen, Ernan McMullin, and myself as prime
examples), it would appear that one must give up either rationality, or intelligence, or
authentic Christian faith.
It is important to notice how
this polemic is crafted. How does Johnson- who, in his own words, approaches the
creation-evolution dispute "not as a scientist but as a professor of law, which means
among other things that I know something about the way that words are used in
arguments"- craft his case against those of us who do see the distinction between
scientific theorizing and naturalistic propaganda, who do find considerable scientific
merit in the concept of common ancestry among all of God's creatures, and who do so, not
in defiance of our Christian heritage or of intellectual integrity, but as an expression
thereof? Simply put, by using (or abusing) words and selected connotations in order to
lead a reader to discover for himself the intended conclusion.
As an illustration of an
especially mischievous use of word associations, consider the word naturalistic and the
closely related words naturalism and naturalist. One of the fundamental flaws in Johnson's
essay (and the rest of his writing on this issue) is that there are two significantly
different meanings of the word naturalistic that he uses without a hint of
differentiation.
One meaning, I shall call it
naturalistic (narrow), is very limited in scope and simply refers to the idea that the
physical behavior of some particular material system can be described in terms of the
"natural" capacities of its interacting components and the interaction of the
system with its physical environment. Hence there is a naturalistic (narrow) theory of
planetary motion, or of star formation, or of earthquakes, or of cell behavior, or of
photosynthesis, or of the development of a zygote into a mature organism.
So understood, naturalistic
(narrow) speaks only to the idea of the functional integrity of a material system as it
acts and interacts in the course of time. No stance regarding the ontological origin of
its existence is either specified or implied. Nor is the ultimate source of its capacities
for behaving as it does, its purpose in the larger context of all reality, or its relation
to divine action or intention. Defined in this way, naturalistic (narrow) has no elements
or connotations that would in any way be objectionable in principle to Christian belief.
The other definition, I shall
call it naturalistic (broad), is far more expansive in scope. It not only includes all of
the elements of naturalistic (narrow), but also superimposes the strong metaphysical
stipulations that neither the existence nor the behavioral capacities of material systems
derive from any divine source (thereby making a Creator unnecessary) and that the behavior
of material systems can in no way whatsoever serve in the attainment of any divine
purpose. So defined, naturalistic (broad) is essentially identical to materialistic and is
absolutely irreconcilable with Christian theism.
Nowhere does Johnson give
evidence of recognizing or honoring the distinction between these two vastly differing
meanings of naturalistic. Most often the broad and essentially antitheistic meaning is
implied (as in his definitions of Darwinism), so that no Christian in his or her right
mind could "accommodate" or "compromise with" such a position.
However, in the context of applying the pejorative label theistic naturalism to the views
of Van Till, Allen, and McMullin, the meaning flip-flops between narrow and broad without
any recognition of their profound difference. This strategy ensures that the label
theistic naturalism will function to convey strongly negative connotations and cast grave
doubt on both the intellectual and spiritual integrity of those persons tagged with this
epithet.
This sort of semantic sleight
of hand may work well to win a legal case in a courtroom, but it does not at all serve to
clarify the discussion at hand. Toward the end of his article Johnson calls upon the
scientific community to replace "vague words like 'evolution' with a precise set of
terms that can be used consistently to illuminate the points of difficulty."
Reflecting on the merits of this advice, Johnson goes on to say that "Nobody on any
side of the issue should object to clarifying the issues that way-nobody, that is, who
really wants to find out the truth." By the measure of his own advice to the
scientific community, the law professor's continuing exploitation of verbal ambiguity
represents, I believe, the visible tip of an iceberg of misconstrual. Whether intended or
not, the propagation of confusion continues.
A second aspect of Johnson's
stance that deserves critical evaluation is his definition or expectation of just what
divine creative action is and how it would manifest itself. Although Johnson does not
offer us a careful development of this important matter, there is nonetheless a
conceptualization of divine creation implicit in his writing. As I see it, Johnson
conceives of God's creative activity not only as that singular and uniquely divine act of
bringing the universe into being from nothing at the beginning of time, but also as a
succession of extraordinary acts in the course of time whereby God forces matter and
material systems (such as DNA molecules and living organisms) to do things beyond their
resident capacities and therefore different from what they would ordinarily do. One could
call this a "theokinetic" concept of creation.
Implicit in Johnson's
discussion is the expectation that "real" creative action is of the
"miraculous intervention" sort that would "make a difference,"
specifically a difference that could be unequivocally confirmed by means of empirical
science. But is this performance of theokinetic acts the historic Christian picture of
what God's creative activity is and how it is manifested? Before we can take up this
question, however, we need first to focus on Johnson's own picture and how it relates to
the rhetoric of evolutionary naturalism.
I understand Johnson to be
saying that if molecules and organisms have in fact accomplished the changes envisioned in
the macroevolutionary paradigm simply by employing their own resident capacities (that is,
without special "divine assistance"), then molecules and organisms would have
accomplished all of the work of creation traditionally ascribed to extraordinary acts of a
"supernatural Creator." Furthermore-and this is the part that Johnson's theistic
naturalists presumably fail to comprehend-the proponents of evolutionary naturalism would
then (by Johnson's measure, that is) be justified in concluding that evolution has made
the Creator unnecessary.
If this is Johnson's
reasoning, then it would appear to me that he has trapped himself in a misshapen
apologetic engagement with antitheistic naturalism. By the apologetic rules imposed by
naturalism (ironically similar to those of young-earth creationism), theistic talk
regarding creation can mean only special creation through acts of "supernatural
intervention." Consequently, the proponents of antitheistic naturalism have occasion
to delight whenever they can identify a material mechanism (as a Christian theist I would
prefer to call it creaturely action) that accomplishes something that special creationists
have reserved for supernatural intervention.
However, since our scientific
knowledge of creaturely action is (and always will be) incomplete, the special creationist
can always hold out the possibility that there are other missing elements in the
developmental economy of the physical universe. Although Johnson wishes to distance
himself from the position of young-earth creationists, he tends to employ the same
rhetorical strategy of treating the absence of evidence (say, for some process or activity
thought to be an important contribution to evolutionary change) as if it were evidence for
the absence of full genealogical continuity. By this means a place for "real"
creation by a supernatural Creator is secured, giving rise to "a nature that points
directly and unmistakably [by scientific measure, presumably] toward the necessity of a
creator."
In discussions of this sort
Johnson adamantly denies that he is espousing a God-of-the-gaps strategy, but I must admit
that I cannot distinguish his argumentation on this point from that of the young-earth
creationists, which is built on the assumption that there must exist gaps in the
developmental economy of the created world-gaps that can be bridged only by acts of
supernatural intervention into the course of otherwise natural phenomena. Gaps in our
scientific understanding are not important in themselves, but they gain profound
significance by being recognized as indicators of gaps in the economy of the created
world. Hence, Johnson is tolerant of a great deal of "microevolution" within the
limits of some category of classification, provided that such phenomena (or any other
natural processes) not be presumed capable of warranting a macroevolutionary theory
concerning how these distinct categories of creatures "came to exist in the first
place."
Caught in the jaws of this
fruitless apologetic debate, in which the existence or nonexistence of an
"active" Creator is to be decided on the basis of whether there are or are not
gaps in the genealogical history of lifeforms, Johnson speaks as if the only conceivable
reason for favoring an unbroken genealogical continuity is that it appears to give the
proponents of antitheistic naturalism an apologetic advantage. Against the background of
the dynamics of this apologetic struggle, we can see why Johnson wishes to place under a
dark cloud of doubt and suspicion those Christians who are caught in the act of favoring
the concept of a created world endowed with a gapless economy that could conceivably
provide the basis for the full genealogical continuity envisioned in the macroevolutionary
paradigm. They must be identified publicly as persons of questionable intelligence and
dubious faith who seek a "compromise" of irreconcilable perspectives, who have
"embraced naturalism with enthusiasm" and strive to "baptize" it for
incorporation into the body of contemporary Christian belief. Beware, dear friends, of
those theistic naturalists, whose twisted reasoning "establishes a remarkable
convergence of Christian theism and scientific naturalism." So goes the accusatory
rhetoric.
But we must get back to the
issue of what kind of activity divine creation is and how we would recognize it. Johnson
and other skeptics of macroevolutionary continuity appear to be looking expectantly for
"evidence" (I presume this to mean the kind of evidence to which natural science
has privileged access) that confirms that God's creative activity has "made a
difference." To the question, "What difference would it make if there were no
Creator?" traditional Judeo-Christian theism has replied, "If no Creator, then
no created world." In other words, the very existence of the world of which we are a
part is sufficient evidence for the action of the Creator. No further proof, not even
modern scientific argumentation, is necessary. Contrary to all of the rhetorical bluster
of materialism in its many forms, neither the existence of the world nor the character of
its functional economy is self-explanatory.
It appears, however, that this
traditional answer is not sufficiently convincing to the law professor. Hence we must seek
evidence for divine creative action of the sort that would convince any honest and
intelligent twentieth-century person that we had proved our case beyond the shadow of
doubt in the court of scientific rationality. In Johnson's words, "If God stayed in
that realm beyond the reach of scientific investigation, and allowed an apparently blind
materialistic evolutionary process to do all the work of creation, then it would have to
be said that God furnished us with a world of excuses for unbelief and idolatry."
This remarkable statement
follows Johnson's appeal to Romans 1, from which he presumably derives his claim that we
should expect to find, by unbiased scientific analysis of the empirical data relevant to
the formative history of distinctly differing life forms, evidence for the kind of
"supernatural assistance" that had "made a difference." One cannot
help but wonder concerning the sorry plight of all those poor folks who, "ever since
the creation of the world" and before the advent of modern biological science, were
deprived of this essential evidence.
In personal correspondence, I
once asked Johnson to help me understand how this evidential test would work by telling me
just how one would establish a "no divine action baseline" to which actual
processes and events could be compared. Armed with a knowledge of this baseline we could
perform the crucial test and settle the apologetic question of the ages once and for all.
Johnson chose not to answer my question. Perhaps he would be willing now to do so for the
readers of First Things and tell us just what biological history would have been like if
left to natural phenomena without "supernatural assistance."
Now it is time to return to
the historical question regarding the way that God's creative action and its visible
manifestation have been pictured by Christian stalwarts of the past. Because of my
personal interest in this matter I have been studying the relevant works of Basil and
Augustine from the Late Patristic period, especially their reflections on the creation
narratives of Genesis.
In the words of one Patristic
scholar, "Saint Basil's work on the Hexaemeron is one of the most important
Patristic works on the doctrine of creation." Delivered as a series of nine homilies,
this work has the style of material spoken to inspire praise of the Creator, not the style
of a treatise written to be subjected to philosophical or theological scrutiny.
Nonetheless, to examine Basil's homilies for their general concept of the nature of the
created world and the character of God's creative activity is an instructive exercise.
Summarized as succinctly as
possible, Basil's picture of creation is one in which God, by the unconstrained impulse of
his effective will, instantaneously called the substance of the entire Creation into being
at the beginning and gave to the several created substances the harmoniously integrated
powers to actualize, in the course of time, the wonderful array of specific forms that the
Creator had in mind from the outset. Both matter and the forms it was later to attain were
the product of God's primary act of creation. Reflecting, for example, on the earth being
initially without the adornment of grass, cornfields, or forests, Basil notes that,
"Of all this nothing was yet produced; the earth was in travail with it in virtue of
the power that she had received from the Creator."
In Basil's judgment, harmony,
balance, and provision for all future needs are characteristics of the created world that
deserve our profound appreciation. Both fire and water, for example, are necessary for the
economy of terrestrial life as we know it. But these two elements (as understood in
Basil's day) must be provided in correct proportions so that neither one will consume the
other. Observing the comfortable balance that appeared to prevail between these two
contending substances, Basil says that we owe "thanks to the foresight of the supreme
Artificer, Who, from the beginning, foresaw what was to come, and at the first provided
all for the future needs of the world." From this it follows, of course, that the
Creator need make no special adjustments at some later date to compensate for inadequate
provision at the beginning. "He who, according to the word of Job, knows the number
of the drops of rain, knew how long His work would last, and for how much consumption of
fire he ought to allow. This is the reason for the abundance of water at the
creation."
Because each element is called
upon to contribute its natural activity to the functional economy of the created world,
Basil considered it essential to make clear that even these natures are the product of
God's creative word and are not the manifestation of any powers independent of God.
"Think, in reality, that a word of God makes the nature, and that this order is for
the creature a direction for its future course."
The divine command recorded in
Genesis 1:11, "Let the earth bring forth grass . . .," is for Basil God's
empowering of the earth for all time with the capacities to assemble and sustain all
manner of plant life. This command from God "gave fertility and the power to produce
fruit for all ages to come." In several ways Basil expresses his conviction that
although the Creator's word is spoken in an instant, the Creation's obedient response is
extended in time. "God did not command the earth immediately to give forth seed and
fruit, but to produce germs, to grow green, and to arrive at maturity in the seed; so that
this first command teaches nature what she has to do in the course of the ages." And
in language that seems almost to anticipate modern scientific concepts Basil goes on to
say that, "Like tops, which after the first impulse, continue their evolutions,
turning themselves when once fixed in their centre; thus nature, receiving the impulse of
this first command, follows without interruption the course of the ages, until the
consummation of all things." Furthermore, "He who gave the order at the same
time gifted it with the grace and power to bring forth." This is consistent with an
earlier comment on the Holy Spirit's activity in creation, "The Spirit . . . prepared
the nature of water to produce living beings."
In his reflections on the
words, "Let the earth bring forth the living creature," Basil speaks eloquently
of the Creation actively carrying out the effective will of the Creator. "Behold the
word of God pervading creation, beginning even then the efficacy which is seen displayed
today, and will be displayed to the end of the world! As a ball, which one pushes, if it
meet a declivity, descends, carried by its form and the nature of the ground and does not
stop until it has reached a level surface; so nature, once put in motion by the Divine
command, traverses creation with an equal step through birth and death, and keeps up the
succession of kinds through resemblance, to the last."
Consistent with the world
picture of his day, Basil, of course, envisions no historical transformation of these
varied kinds; but at the same time he offers no theological objection whatever to the
concept of spontaneous generation of living creatures from earthly substance alone. For
instance, "We see mud alone produce eels; they do not proceed from an egg, nor in any
other manner; it is the earth alone which gives them birth. 'Let the earth produce a
living creature.'" It would seem, then, that Basil envisions the first appearance of
each kind of living creature occurring in like manner, the earth having been endowed from
the beginning with all of the powers necessary to physically realize the whole array of
lifeforms created in the mind of God. The elements of the world, created by God from
nothing at the beginning, lacked none of the capacities that would be needed in the course
of the ages to bring forth what God intended. The economy of the created world was, from
the outset, complete-neither cluttered with things that had no useful function nor lacking
any capacity integral to its functional economy. In Basil's words, "Our God has
created nothing unnecessarily and has omitted nothing that is necessary."
In his work De Genesi ad
litteram (The Literal Meaning of Genesis), St. Augustine provides an extensive
commentary on the first three chapters of Genesis. His goal is to demonstrate a one-to-one
correspondence between the text of these chapters and what actually took place in the
creative work of God; in fact, this is precisely how he defines the term
"literal" in this endeavor. In contrast to modern biblical literalism, however,
Augustine shows no disdain for interpreting certain words and phrases in early Genesis in
a figurative sense, but even these figurative readings are firmly bounded by the
controlling assumption that Genesis 1-3 is "a faithful record of what happened."
In constructing his literal
reading, Augustine makes extensive use of the analogy of Scripture; the meanings of words
or phrases in Genesis are often decided by comparison with other relevant texts. But
Augustine is equally insistent that the literal meaning thereby derived may never stand in
contradiction to one's competently derived knowledge about the "earth, the heavens,
and the other elements of this world," knowledge that one rightfully "holds to
as being certain from reason and experience." In a tone that leaves no doubt
concerning his attitude, Augustine soundly reprimands those Christians who defend
interpretations of Scripture that any scientifically knowledgeable non-Christian would
recognize as nonsense. "Reckless and incompetent expounders of Holy Scripture bring
untold trouble and sorrow on their wiser brethren when they are caught in one of their
mischievous false opinions and are taken to task by those who are not bound by the
authority of our sacred books."
For a number of reasons,
Augustine, like Basil, concludes that God created "all things together" in one
initial, all-inclusive, and instantaneous creative act. But the initial and simultaneous
creation of "all things together," reported to us within the literary framework
of a six-day narrative, should not be taken to mean that all created things suddenly
materialized in mature form at the beginning. With considerable labor and repetition,
Augustine developed a rather sophisticated program of interpretation by which he sought to
distinguish what took place at the beginning from what took place in the course of time.
In the beginning, according to Augustine, God called into being all created substance and
all creaturely forms. At this beginning all created forms existed both in the mind of God
and in the formable substances of the created world. But in the formable substances the
creaturely forms did not exist actually, but only potentially. Although the creaturely
forms were not yet actualized in visible, material beings, these forms were there
potentially in the powers and capacities, called by Augustine "causal reasons"
or "seed principles," with which the Creator had originally endowed the created
substances.
Perhaps we should let
Augustine speak for himself on this issue: "But from the beginning of the ages, when
day was made, the world is said to have been formed, and in its elements at the same time
there were laid away the creatures that would later spring forth with the passage of time,
plants and animals, each according to its kind. . . . In all these things, beings already
created received at their own proper time their manner of being and acting, which
developed into visible forms and natures from the hidden and invisible reasons which are
latent in creation as causes. . . . [W]hat He had originally established here in causes He
later fulfilled in effects." Finally, "some works belonged to the invisible days
in which He created all things simultaneously, and others belong to the days in which He
daily fashions whatever evolves in the course of time from what I might call the
primordial wrappers."
Now, lest we be tempted to
infer that Augustine is thereby proposing a macroevolutionary scenario in which these
emerging lifeforms are genealogically related, we must immediately note that he in fact
offers no suggestion whatsoever of any historical modification of the created
"kinds." Consistent with the world picture of his day, Augustine envisioned each
unique "kind" of creature to have been individually conceptualized in the
Creator's initial act of creation and independently actualized as the causal reasons
functioned to give material form to the conceptual forms created in the beginning.
Standing in the tradition of a hierarchically structured cosmos populated with fixed kinds
of creatures, Augustine had sufficient reason to envision the independent creation and
formation of each kind. And without any knowledge of genetic variability or of the
temporal succession of lifeforms over a multibillion-year timespan, Augustine had no basis
for questioning either that tradition or the concept of spontaneous generation.
In the context of our present
concern, however, I wish to draw attention, not to the particulars of Augustine's portrait
of God's creative work, articulated in the conceptual vocabulary of his day, but to one of
his underlying presuppositions concerning the character of the created world: the universe
was brought into being in a less than fully formed state but endowed with the capacities
to transform itself, in conformity with God's will, from unformed matter into a marvelous
array of structures and lifeforms. In other words, Augustine envisioned a Creation that
was, from the instant of its inception, characterized by functional integrity. Every
category of structure and creature and process was conceptualized by the Creator from the
beginning but actualized in time as the created material employed its God-given capacities
in the manner and at the time intended by the Creator from the outset.
What is the point of bringing
Basil and Augustine into our critique of Johnson's essay? Are Basil and Augustine to be
treated as authorities on the chronology or the historical particulars regarding the
formation of species? Of course not. Since their day, fifteen centuries ago, we have
learned, for instance, that the spontaneous generation concept of that time fails to be
viable. And we have learned that the history of lifeforms spans billions of years and is
marked by patterned change. The first organisms were unicellular; today a marvelous
diversity of both unicellular and multicellular forms exists. We have learned that species
come and go, and that most of the lifeforms that once lived are now extinct. And we have
learned that on the molecular level the present array of species exhibit relationships
that strongly support the idea- drawn earlier from morphological, biogeographical, and
paleobiological considerations-that all species share a common ancestry. (This thesis is
most strongly affirmed by similarities, not in the small portion of DNA that functions
genetically, but in the greater portion, sometimes called "junk" DNA, in which
no similarities at all would be expected on a special or independent creationist picture.
In fact, they would have to be considered mischievously misleading.)
No, Basil and Augustine have
no lessons for us on matters biological. But as I reflect on the sorry state of
contemporary discussion regarding the relationship of Christian belief and evolutionary
science, I am convinced that the fruitfulness of our discourse would be vastly improved if
we could recover from their theological work what I have come to call "the forgotten
doctrine of Creation's functional integrity." Basil and Augustine held high views of
what God brought into being. The created world envisioned by Basil and Augustine was a
world endowed by the Creator with a functionally complete economy-no gaps, no
deficiencies, no need for God to overpower matter or to perform theokinetic acts in order
to make up for capacities missing in the economy of the created world. (The question of
miracles performed by God in a world having such a gapless economy is an entirely
different matter and is under no threat from the concept of functional integrity. The
issue here is the character of the world within which God acts and with which God
interacts.)
But if we grant that molecules
and organisms do have the capacities to bring about the genetic and morphological changes
envisioned in contemporary biological theorizing, have we then capitulated to naturalism?
Are physical/chemical/biological processes like mutation and selection (plus all of the
other relevant processes) doing the creating? From a theistic perspective, certainly not.
These processes need not and cannot create anything.
I believe that we Christians
are warranted in seeing every potentially viable lifeform (or every viable variant of DNA)
as something thoughtfully conceived in the mind of the Creator. As did Basil and
Augustine, I believe that we may rightfully speak of God calling into being at the
beginning, from nothing, all material substance and all creaturely forms (whether
inanimate structures or animate lifeforms). And, still standing with Basil and Augustine,
I believe that we may rightfully presume that the array of structures and lifeforms now
present was not yet present at the beginning, but became actualized in the course of time
as the created substances, employing the capacities thoughtfully given to them by God at
the beginning, functioned in a gapless creational economy to bring about what the Creator
called for and intended from the outset.
In the context of this
traditional Christian vision of God's creative work (notably different from Johnson's
theokinetic picture), we might now wish to employ the vocabulary of twentieth-century
science and speak about the full array of functionally viable forms of DNA (and the
creatures thereby represented) as constituting a "possibility space" of
potential lifeforms-this possibility space itself, along with all connective pathways,
being an integral component of the world brought into being at the beginning. Furthermore,
in the language of this theistic paradigm of evolutionary creation we would speak of DNA
being enabled by the Creator to employ random genetic variation as a means to explore and
discover (in contrast to create) viable pathways and novel lifeforms so that the Creator's
intentions for the formative history of the Creation might be actualized in the course of
time.
See, then, what this
evolutionary creation paradigm accomplishes: Do material processes have to create? No, the
possibility space of viable and historically achievable lifeforms is an integral aspect of
the world that God created at the beginning. Material systems need only employ their
God-given functional capacities to discover some of the possibilities thoughtfully
prepared for them. But, one might ask, how can such "mindless" material
processes function to bring about what appears to be the product of "intelligent
design"? The point is that they are not really mindless at all. Rather, every one of
these processes and every connective pathway in the possibility space of viable creatures
is itself a mindfully designed provision from a Creator possessing unfathomable
intelligence.
It seems to me that this
theistic paradigm provides precisely what the naturalistic (broad) paradigm-the blind
watchmaker hypothesis-could not. It provides the answer to the question, How is it
possible that such a remarkable array of lifeforms is not only viable but historically
realizable within the economy of the world at hand? Could anything less than the infinite
creativity and faithful providence of God suffice?
Surely not. Hence my rejection
of the blind watchmaker hypothesis of Darwinism, but without the necessity of rejecting
the possibility of genealogical continuity along with it.
I have a dream that some day
the forgotten doctrine of Creation's functional integrity will be recovered; that it will
once and for all displace all variants of the God-of-the-gaps perspective; that the
empirically derived confidence in the concept of genealogical continuity will no longer
give apologetic advantage to the proponents of antitheistic naturalism; and that the whole
enterprise of scientific theory evaluation will no longer be distorted by
counterproductive entanglement with the authentically religious debate between theism and
atheism. When that happens, the declarations of atheistic purposelessness offered by
Jacques Monod, William Provine, or Richard Dawkins and company will have to be defended on
their religious merit alone. They will have lost the services of science, once held
hostage by strident preachers of materialism, and once held in distrustful suspicion by a
misguided portion of the Christian community.
Howard J. Van Till is
Professor of Physics at Calvin College in Grand Rapids, Michigan.
II
Phillip E. Johnson
Perhaps the best way to start
is by answering Howard Van Till's question: just what would biological history have been
like if left to natural phenomena without God's participation? If God had created a
lifeless world, even with oceans rich in amino acids and other organic molecules, and
thereafter had left matters alone, life would not have come into existence. If God had
done nothing but create a world of bacteria and protozoa, it would still be a world of
bacteria and protozoa. Whatever may have been the case in the remote past, the chemicals
we see today have no observable tendency or ability to form living cells, and
single-celled organisms have no observable tendency or ability to form complex plants and
animals. Persons who believe that chemicals unassisted by intelligence can combine to
create life, or that bacteria can evolve by natural processes into complex animals, are
making an a priori assumption that nature has the resources to do its own creating.
I call such persons
metaphysical naturalists. Throughout this reply, as in the original paper, I use the term
"naturalism" in what Van Till would call the broad sense. Of course, theists
recognize that experience has shown that a great many phenomena have natural causes that
are accessible to scientific investigation. To a theist there is nothing surprising about
this, because the universe is a product of the mind of God and the inquiring mind of man
was created in God's image. Whether such extraordinary events as the origin of life, the
origin of the plant and animal phyla, or the origin of human consciousness can be
satisfactorily explained in terms of unintelligent natural causes should be an open
question for theists. A person who assumes a priori that such creation events must have
scientifically ascertainable material causes is a metaphysical naturalist. If he believes
in God he is a theistic naturalist, who limits God's freedom by the dictates of
naturalistic philosophy.
The subject of my essay was
not "genealogical continuity," or "common ancestry," or even "a
gapless economy of creation." I agree with Howard Van Till that concepts like these
can easily be incorporated into a genuinely theistic worldview. My theology does not
require that God create by what Van Till calls "theokinetic acts," or by any
other particular method. If God exists at all, He could create by whatever means He
chooses, whether or not the choice pleases me, Van Till, or the rulers of evolutionary
biology. Determination of the method that God actually employed should be left to unbiased
scientific research. On the other hand, theists should not accept a definition of
"science" that excludes the possibility of divine action, nor should they accept
Darwinian theory uncritically merely because it is the leading naturalistic explanation
for life's diversity and complexity. We ought to scrutinize the evidence independently,
and consider the possibility that Darwinists have derived their theory more from
naturalistic philosophy than from empirical evidence. Maybe what God chose to do just
isn't known to the evolutionary biologists of today.
My target was the Blind
Watchmaker thesis, the crucial Darwinian claim about how very simple life forms were
transformed into the highly complex organisms that inhabit the planet today, including
ourselves. The Blind Watchmaker thesis says that natural selection, in combination with
random mutation, has the kind of creative power needed to make complex plants and animals
out of very much simpler predecessors. If Darwinian selection does not have the required
creative power, then "evolution" in some general sense may still be true, but
science does not know how creative evolution has occurred.
The evidence that Darwinian
mechanism either could or did make flowers, insects, whales, and human beings from
single-celled microorganisms is not impressive. The fossil record is notoriously
inconsistent with the Darwinian model of continuous change in tiny increments. Selective
breeding, which in any case presupposes the guiding power of human intelligence, produces
change only within the limits of the existing gene pool. The peppered moth story, which
involves no creation whatsoever, is still the most important example of the creative power
of natural selection. If one considers only the empirical evidence, the Blind Watchmaker
thesis is a fantastic extrapolation from clearly inadequate evidence.
The fundamental error that
theistic evolutionists like Van Till make is to assume that, because the modern
neo-Darwinian evolutionary synthesis is classified as "science," it is supported
by impartially evaluated empirical evidence. This is not true, and I think Van Till at
some level realizes that it is not true. He accuses me of "treating the absence of
evidence (say, for some process of activity thought to be an important contribution to
evolutionary change) as if it were evidence for the absence of full genealogical
continuity." The process or activity in question is the Darwinian process of creation
by mutation and selection. The absence of evidence for that process is hardly something to
be brushed aside as "rhetoric." It means that, contrary to the expansive claims
of Darwinists, empirical investigation has not discovered a mechanism by which the
fantastically complex structures of plants and animals can be built from vastly simpler
organisms like bacteria and protozoa.
Whether "genealogical
continuity" in some sense unites all living things is another question. Certain
features, like the existence of natural groups and common "junk DNA" sequences,
support an inference that there was some sort of process of development from some common
source. We may call that process "common ancestry," but it does not necessarily
follow that we are referring to the ordinary process of reproduction that we observe in
today's world, where ancestors give birth to descendants very much like themselves. Normal
reproduction is not known to produce radically new organs or organisms, and if it did so
it would have to proceed one tiny step at a time. In fact there is a great deal of
evidence that innovative transformations must have involved organisms doing something
"different from what they ordinarily do." The hypothetical single-celled
organism that produced as descendants all the animal phyla appearing suddenly in the
Cambrian era-without leaving a trace of the developmental process in the fossil record-was
not doing just what single-celled organisms ordinarily do. The same is true of the
hypothetical four-footed mammal ancestor of whales and bats. What actually did cause such
a vast transformation remains utterly mysterious, as far as anyone can determine from
scientific evidence.
That is where the philosophy
of scientific naturalism comes in, to make a weak case practically invulnerable to
criticism. Naturalism teaches that intelligence and purpose did not come into existence
until they evolved, and so chemical and biological evolution had to be purposeless,
unguided processes. The task of science is to propose plausible mechanisms by which such
naturalistic evolution could have occurred. Darwinian selection is the most plausible
candidate that anyone has been able to suggest, and so despite the poor fit with the
evidence it holds its position as the "best scientific theory." The evidence
that is consistent with this theory is cited as confirmation. The evidence that conflicts
with it is ignored, or dismissed as unimportant.
Metaphysical naturalists
understandably don't require much confirming evidence for a thesis that is so congenial to
their philosophy. They also see no point in criticisms that point out the inadequacy of
the supporting evidence. If this particular version of the Blind Watchmaker thesis is
faulty, then something else very much like it must be true anyway. What else could have
happened? If one believes in the existence of an omnipotent creator, a lot else could have
happened. Nonetheless, many of the most influential voices in Christian academia are as
protective of Darwinian "scientific theory" as the metaphysical naturalists.
Even though they acknowledge that practically all the leading Darwinists of the twentieth
century have employed their theory in popular presentations and textbooks to discredit the
idea that God had anything to do with our creation, these Christian intellectuals insist
that the theory itself is entirely benign, and even conducive to a theistic
interpretation.
Van Till exposes the reason
for this protective attitude clearly enough in his opening paragraph, when he accuses me
of trying to "perpetuate the association of Christian belief with the rejection of
contemporary scientific theorizing, thereby ensuring that the gulf between the academy and
the sanctuary will only grow wider." As he sees it, the job of Christian
intellectuals is not to challenge the picture of reality provided by a science committed
to naturalism, but to accept the picture and show how it can be given a theistic
interpretation. Reconciliation is achieved by softening the blunt edges of the Darwinian
claim with soothing language. When translated into the vocabulary of theistic evolution,
the claims of the Darwinists sound innocent enough. All the scientists are really saying,
we are told, is that there is evidence for "genealogical continuity"-like junk
DNA sequences-and modest claims like that do not rule out the possibility that evolution
is a God-directed process. More than that, "evolution" can be likened to the
complex theories of creation stated by revered early Christian authorities like
Augustine-provided, of course, that we ignore the naturalistic metaphysical baggage that
the word "evolution" carries when it is used in the Darwinist literature. If we
let such reassurance lull our critical faculties to sleep we can sleep in peace. Science
and religion can lie down together like the lion and the lamb, as long as the lambs do not
provoke the lions by challenging their theories.
I do not doubt that Van Till
and others can interpret "evolution" to their Christian audiences in a genuinely
theistic manner. What those audiences need to understand, however, is that theistic
evolution is not what the reigning scientific and educational authorities have in mind
when they propose to teach every school child that "evolution is fact." They
mean fully naturalistic evolution, complete with the Blind Watchmaker thesis, because they
regard metaphysical naturalism as the indispensable philosophical basis of science. If
persons like Van Till were in charge of science education things might be different, but
in fact theists have very little influence. It is the view of evolution taken by
authorities like Stephen Jay Gould, Richard Dawkins, Carl Sagan, and Douglas Futuyma that
actually teaches the public and the students, and that view is rigorously and
uncompromisingly naturalistic.
It is Van Till and not I who
characterized theistic naturalism as "a transparently incoherent stance that no
rational or intelligent Christian could possibly take." I do think that theistic
naturalism is ultimately incoherent, but the incoherence is not obvious and it is
understandable that many rational and intelligent Christians have overlooked it. First, we
have all been taught to think of "science" as a neutral, objective process of
fact-finding that is not biased in favor of a comprehensive metaphysical naturalism. In
consequence the conclusions of science must be accepted by anyone who wants to be
considered rational by the standards of the academic world. When "science says"
that natural selection can accomplish wonders of creativity, that is the end of the
matter. Religion cannot survive in a naturalistic academic culture if it opposes science,
and so religion must accommodate to science on the best terms it can get. Effectively,
that means that God must be exiled to that shadowy realm before the Big Bang, and He must
promise to do nothing thereafter that might cause trouble between theists and the
scientific naturalists.
In short, theistic naturalism
is best understood as an intellectual strategy for coping with a desperate situation. It
was barely tenable as a philosophical position as long as the leading scientists believed,
or pretended to believe, that science is a limited research activity which does not aspire
to occupy the entire realm of knowledge. Today many of the world's most famous physicists
are proclaiming the imminent prospect of a "theory of everything"-and they do
mean everything. It may be that these physicists-and the evolutionary biologists who talk
just like them-are no longer practicing "science" and have become
metaphysicians. What is important is that they mix metaphysics and science together and
present the whole package to the public with all the awe-inspiring authority of science. I
have read that 500 million persons have seen Carl Sagan's Cosmos series, many of them in
the public schools, and very few of them were warned that "What you are about to see
is metaphysics, not science." The Time cover story for December 28, 1992
says it all: the title asks "What Does Science Tell Us About God?" The answer is
plenty, and more all the time.
Obviously I offended Van Till
with that phrase "theistic naturalism." In a way I am sorry for that, for he is
a decent and honorable person whom I would like to have for a friend. But it is necessary
to send a wake-up call to a Christian academia that has complacently assumed that mild
protests against the most explicitly metaphysical claims by scientists are all that is
needed to maintain an intellectually respectable place for theistic religion. The
situation is far more serious than that. Metaphysical naturalism has taken over mainstream
science, not in a superficial sense but in a profound sense. Purportedly factual claims-
like the power of mutation and selection to create complex organs-are based upon
philosophical reasoning rather than empirical investigation.
The real danger is not from
the metaphysical statements that come explicitly labelled as such, but from the implicit
metaphysics that generates seemingly objective facts and theories. Van Till writes that we
must carefully distinguish "between scientific theorizing and naturalistic
propaganda." I agree, but we also need to recognize that the persons who now rule
science do not themselves know how to make that distinction, and do not even want to make
it. We will have to teach them that naturalistic philosophy and scientific investigation
are not the same thing, and we cannot even begin to do that if our first priority is to
avoid conflict with the rulers of science.
Phillip E. Johnson, Professor
of Law at the University of California, Berkeley, is a frequent contributor to First
Things.