Historically, when David Hume and Immanuel Kant exposed the invalidity of the theistic proofs, apologists generally balked at returning to revelation as the basis for their certainty of God’s existence. They elected, rather, to maintain status in the the blinded eyes of the “worldly wise” by attempting to prove Christianity’s credibility by means of arguments that hopefully pointed toward the probability of God’s existence and Scripture’s truth. They settled for a mere presumption (plus pragmatic assurance) in favor of a few salvaged items (i.e., “fundamentals”) from the Christian system. Refusing to presuppose the sovereign God revealed in the Bible as the source of all material or logical possibility, and hence failing effectively to challenge or internally criticize the very feasibility of knowledge, logic, factuality, interpretation, or predication as based on the boasted autonomy of “free-thinkers”, apologists found their defenses razed by those who (likewise) postulated that bare possibility was a principle more ultimate than God. … By appealing to probability, apologists saw Christianity relegated to the museum of of mere religious hypotheses (i.e.. “possibilities”) rather than embraced as the actual truth of God.

~Greg Bahnsen (Presuppositional Apologetics: Stated and Defended; ch 1, pg 5)

Enough said. Don’t you think?