Hume's attack on the empirical arguments for God's existence

"It was David Hume who first among the moderns formulated empiricism as the all-inclusive criterion of truth and applied it to theological assertions with an agnostic outcome. Hume's theory struck hard at the Thomist case for Christian theism, which, in contrast to the Scriptures, rests its argument on empirical considerations rather than divine revelation. Hume insisted that effective scientific inquiry is thwarted unless finite effects are correlated with equivalent causes only, rather than with an infinite cause; moreover, he denied any objective status to causality in nature. The Humean assault on Christian theism is therefore specially directed against the Thomistic contention that the existence of God, and the existence and immortality of the soul, are logically demonstrable simply through empirical considerations independent of divine revelation. Hume's contention was that those who profess theological beliefs on empirical grounds have no right to such believes unless they produce requisite perceptual evidence, and that in the absence of demonstrative empirical proof, belief is unreasonable."- Carl F. H. Henry, God, Revelation, and Authority