1 Corinthians 2:5

that the natural man cannot understand it.
Overview - 1 Corinthians 2
He declares that his preaching, though it bring not excellency of speech, or of human wisdom, yet consists in the power of God;
and so far excels the wisdom of this world, and human sense,
Treasury of Scripture Knowledge

1 Corinthians 2:5  (King James Version)
That your faith should not stand in the wisdom of men, but in the power of God.

Greek be. but.
1:17 3:6 Acts 16:14 ; 2 Corinthians 4:7 ; 6:7