One popular objection to the so-called ‘Transcendental Argument for God,’ or ‘TAG,’ is that it does not amount to anything more than a generic theistic proof (if it amounts to anything at all). A number of ‘naïve presuppositionalists’ have stumbled over this apparent difficulty. Their extra-biblical rationalistic bent does not help. But they are far from being alone in failing to mount a satisfying response to the objection in question.
One helpful attempt at responding to the objection is an unashamed affirmation of revelational epistemology. ‘God said it, I believe it, and that settles it’ works quite well with this brand of apologetics. It works quite well, that is, until one presses a bit more on the specifics of the program. Imagine the thoroughgoing biblical apologist in an apologetic exchange insisting that the Valley of Siddim was full of bitumen pits. The unbeliever is confused by the seemingly random statement, to say the least. The confusion is not a result of having been soundly refuted. Rather, the confusion results from having just heard a Christian apologist tell him, several times, that the Valley of Siddim was full of bitumen pits.
Why is it so important that the apologist point out that the Valley of Siddim was full of bitumen pits? Because the fact that the Valley of Siddim was full of bitumen pits is a precondition of intelligibility. You see, the apologist and the unbeliever were talking about logic, science and morality right before we joined them. The unbeliever asked the apologist how Christian theism provides the preconditions for intelligibility and the apologist responded that the Valley of Siddim was full of bitumen pits.
We rarely, if ever, have seen Christian apologists assert that the Valley of Siddim was full of bitumen pits in response to a question about how Christian theism provides the preconditions of intelligibility. We might see the Christian apologist quote Exodus 3.14 with respect to logic, or Genesis 8.22 with respect to science, or Mark 10.18 with respect to morality. But Genesis 14.10 is strangely absent from typical apologetic presentations and responses. Why is that?
Because the particular details of Scripture are set aside in most presentations of TAG. Apparently they are unimportant and irrelevant to the preconditions of intelligibility. The apologist is not functioning in accord with a revelational epistemology at all. Rather, the apologist is functioning in accord with a derivative set of supposed preconditions of intelligibility. The implication is that the preconditions of intelligibility – the preconditions for logic, science, and morality – are found within the Christian worldview. That is, within the Christian worldview we find a subset of preconditions of intelligibility. These preconditions are expressed in something like the three verses cited in the paragraph above. Now, it seems the apologist is merely appealing to a Christianized framework of sorts to account for logic, science and morality. But establishing a Christianized framework is far from establishing the Christian worldview as a whole. A mere subset of Christian beliefs is not the same as the entirety of the Christian worldview. Not only do most non-Christian theistic worldviews share the Christianized framework the apologist sets forth, but even non-theistic positions might attempt to ape the set of preconditions in question. So, we are back to the same problem stated in the introduction of this post. How does the Christian apologist prove Christian theism in particular through TAG?
Tell me, what is the necessary connection between logic and the Valley of Siddim that was full of bitumen pits? And if the connection is so important, then why are Christian apologists so frequently forgetting to mention that fact in their presentation of TAG, along with so many other seemingly irrelevant, though crucially important particulars of the biblical text?