A reader responded to my previous blog
on
Anti-theism and challenged me to
show how I
know that
God exists
without relying on the Bible. It has been stated many times that such a proof is provided by the negative portion ("God exists because of the impossibility of the contrary") of the Transcendental Argument for God (TAG). However, we have mentioned that, as Christians, we defend Christianity as a whole; not a truncated metaphysical theism (or Deism). The God referred to in TAG is the Triune God of Christianity -- not a merely generic deity.
But first, we need to consider the nature of the unbeliever's challenge.
Such a challenge typically stems from metaphysical and epistemological biases -- i.e., unargued presuppositions. The challenge is certainly
intellectually anti-Christian. It may be motivated by a false belief that the Bible is contradictory and unreliable or falsely assumes that Christians adhere to the Bible as an arbitrary authority in blind faith. But beyond that, it presupposes an unspecified
method and some coordinate standard of
knowledge by which the proof (or proof of
anything) would be judged. Based on remarks of typical unbelievers, perhaps by "show" he means deductive argumentation.
Of course, it is well known that deductive arguments only produce what is already contained in their premises. (In other words, the conclusion is already contained in the asserted premises. That is why the conclusion is
necessitated by the premises.) Or, he could mean "show" by the "scientific method" since he once intimated that only science produces "knowledge." TAG (being a transcendental argument) is not properly an empirical (inductive) nor a deductive argument (as those are understood by the opponents of theism) and thus would seem to be disallowed
by assumption and
stipulation as producing knowledge of the sort acceptable to the respondent's presupposed epistemology - a biased non-neutral theory of knowledge that is antithetical to the Christian theory of knowledge and thus precludes Christianity.
1 So the correspondent's attempt to impose an assumed non-Christian methodology is illegitimate. But not all things are known by way of inductive empiricism (sense
perception) or deductive syllogisms (as understood by anti-theistic philosophies).
2 Perhaps he merely means (ambiguously) provide some presumably neutral
"reasoning." One can fairly ask: What are the non-Christian assumptions behind this putative "neutral reasoning"?
Unbelievers merely
presuppose "reason" without a ground. For them reason is conceivably just one more brute fact in a mindless and
infinite sea of other unrelated brute facts. None of these brute facts are necessarily dependent on God, of course. Since it presupposes that human reason and rules of logic can exist apart from God it is, de facto, an atheist theory of knowledge. Such is
blatantly not a neutral stance. The question is,
ipso facto, a visible display of the "myth of neutrality" (or what Greg Bahnsen has called the "pretended neutrality fallacy"). In this regard, the unbeliever's underlying epistemology is patently non-neutral -- it is an atheist epistemology. An unbeliever views himself as the self-sufficient autonomous man; a man produced out of a sea of chance, by way of materialistic evolutionary processes, yet, nonetheless, now free from that very "chance" and using an ultimate and immaterial "eternal logic" to judge what can or cannot be the case. To an agnostic, maybe some sort of "god" may exist, but such a "god" is irrelevant to their use of reason and appeal to abstract logic. Again, that stance, in effect, presupposes atheism.
We again
point out that on atheist (and agnostic) metaphysical presuppositions, there is no "reason for
reasoning." Human minds, consciousness, rational autonomy, abstract immaterial concepts, truth and knowledge, in general, would not exist in the world of material monism -- where all that exists is matter moving according to physical causality. There is no justification for the atheist's appeal to induction and assumptions of causality (uniformity of nature), and no account of deductive logic or rational volitional minds springing from matter-in-motion. In general, there is no philosophically sound account of (merely presupposed) autonomous "reason"
that comports with atheist metaphysical presuppositions. If man is produced by necessity and chance,
and there is nothing that transcends the material, then how can man be autonomous? If man was created by chance and necessity, he still is controlled by chance and necessity.
3 The necessity and chance of atheist monism (of all varieties) is antithetical to human autonomy. In the atheist universe all events are ultimately the result of chance and are acausal -- this is metaphysical
irrationalism. In spite of these metaphysical presuppositions, the atheist attempts to build his "rational" house on an infinite sea of irrational chance. Since this ultimacy of the irrational provides no explanation or justification for either inductive reasoning or the universal validity of logic, it is futile, on their terms, to use these methods as the basis of any "explanation." Thus, on the atheist's presuppositions, not only would "reason" not exist -- nothing would be provable and nothing would be knowable. The conclusion is that the atheist knows nothing. Atheism resolves itself in an ultimate and irremediable skepticism. These are some of the many refutations of atheism (and, a fortiori, of agnosticism). But let us proceed.
So then, as Christian
apologists, we defend the objective truth of the totality of
Christian
theism. Our
positive argument takes Christian theism as a complete
and coherent system, a total worldview, that is defended as a whole. That whole is
based on, and thus includes, God's revelation and Christ testified to in the historical record
in the Bible. We don't defend a theism without Christ. We defend
Christian theism. This defense includes the
Biblical doctrines of the Trinity, the deity of Christ, the virgin birth, Christ's death and bodily resurrection, and Christ's atonement for sin, and the redemption of sinners.
The respondent's challenge is somewhat akin to challenging a geometer to
prove the theorems of Euclidean geometry without using Euclid's
axioms.
4 That would be rather silly. In the same way, the
respondent's attempt to impose such a demand on
Christians is, likewise, silly. The challenge is based on a
presupposed anti-theistic standard of truth ("epistemic authority"), a standard that is
based on a viciously circular philosophy and that is not
self-verifying. It is a prejudicial, merely assumed and unproven standard, consequently, that standard is not normative.
5 Further it is an epistemology that does not comport with the anti-theist's (whether atheist or agnostic) presupposed metaphysics. (In fact, as has been repeatedly shown, such merely asserted epistemological claims, such as "only science yields knowledge," are self-refuting.) At any rate, it is a truth that one cannot argue
deductively from a false (inconsistent) system
to a true (consistent) one, or from one system to its contrary.
6 (This is one reason why one must argue transcendentally.)
Further, the God Who we know exists is not just a mere abstract
concept ("the god of the philosophers") but the God of
Christianity, the personal Triune
God revealed in the Bible. The respondent's challenge imposes an unbelieving and non self-verifying epistemological framework
(his "rules of the game") to assess Christian truth. It is an invalid invitation for Christians to step outside of our circle of authority and join him within his circle of authority. This
challenge should be filed under, "Deducing Christian Theism from Atheism," right next to the file on "Squaring the
Circle." As Scripture states: "Answer not a fool according to his folly, lest thou
also be like unto him." (Prov 26:4).
In short, the challenge is: "I'll presuppose my worldview, but you can't presuppose yours!" But then, as Van Til has remarked, we treat the unbeliever better than he is willing to treat us. As Presuppositionalists,
we do not impose any like demand on
unbelievers. Rather, we challenge them to explicate and show the consistency of their
worldview (metaphysics, epistemology and ethics)
on their presuppositions.
So then, how do we know the Triune Christian God exists?
We know that the Triune Christian God exists because of the
impossibility of the contrary. Positively, that the God of Christian theism -- revealed in the Bible and the creation -- is the necessary precondition for the intelligibility of human experience. This is the Transcendental
Argument for God (TAG) in a nutshell, and we argue via
transcendental critiques of the unbeliever's worldview that show their presuppositions are self-contradictory. This is
necessary because of the radical and total antithesis of the
opposing worldviews. In Christianity, every man
and every fact is dependent on God. In atheism autonomous man is
independent of God and no fact is dependent on God. So then there is no neutral ground, no neutral
epistemology and certainly completely antithetical metaphysics. (The respondent's challenge is evidence of this. The challenge rejects Christian epistemology and embraces a groundless atheist epistemology and standards of truth.)