The Bible is authoritative on everything of which it speaks. Moreover, it speaks of everything.
Cornelius Van TilThe only proof for the existence of God is that without God you couldn't prove anything.
Cornelius Van TilThe picture of fallen man as given in Scripture is that he knows God but does not want to recognize Him as God.
Cornelius Van TilAgnosticism is epistemologically self-contradictory on its own assumptions because its claim to make no assertion about ultimate reality rests upon a most comprehensive assertion about ultimate reality.
Cornelius Van Til