The disturbing God acknowledged by Jewish and Christian theism is not static but dynamic, interactive, and elusive. In particular, this God reveals himself to some people at times and hides himself from some people at times, for the sake of gaining fellowship with people. As a result, this God is cognitively elusive, since the claim that this God exists is not obviously true or even beyond evidentially grounded doubt for all capable mature inquirers. Let’s think of the God in question as “the living God” in virtue of this God’s being personally interactive with some agents and cognitively nimble and dynamic rather than functionally or cognitively static. This God, more specifically, is elusive for good reasons, that is, for reasonable divine purposes that fit with God’s unique character of being worthy of worship and thus being morally perfect. Accordingly, we should expect any evidence of God’s existence for humans to be purposively available to humans, that is, available to humans in a way that conforms to God’s perfectly good purposes for humans. This paper explores the striking consequences of this position for natural theology in particular and for theistic philosophy in general. It outlines an epistemology of God’s existence that is pneumatic, owing to a personal divine Spirit (who cannot be reduced to Calvin’s sensus divinitatis), and that is thus foreign to secular epistemology and to much philosophy of religion. It is also an incarnational epistemology, given its cognitive role for God’s Spirit dwelling in humans, in such a way that they become a temple of God’s Spirit (1 Cor. 6:19). We may think of incarnational epistemology as requiring that human inquirers themselves become evidence of God’s reality in virtue of becoming God’s temple. In this approach, characteristic evidence of God’s reality is increasingly available to me as I myself am increasingly willing to become such evidence.