19. with God—in the judgment of God.
it is written—in Job 5:13. The formula of quoting Scripture used here, establishes the canonicity of Job.
He taketh … wise in … own craftiness—proving the "foolishness" of the world's wisdom, since it is made by God the very snare to catch those who think themselves so wise. Literally, "He who taketh … the whole of the sentence not being quoted, but only the part which suited Paul's purpose.