1 Corinthians 1:18; 1 Corinthians 1:21; 1 Corinthians 2:14; 1 Corinthians 3:19

1 Corinthians 1:18

18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.

1 Corinthians 1:21

21 For after that in the wisdom of God the world by wisdom knew not God, it pleased God by the foolishness of preaching to save them that believe.

1 Corinthians 2:14

14 But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

1 Corinthians 3:19

19 For the wisdom of this world is foolishness with God. For it is written, He taketh the wise in their own craftiness.