1 Corinthians 1:18, 21, 23

For the word of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.

For since in the wisdom of God the world through its wisdom did not come to know God, God was well-pleased through the foolishness of the message preached to save those who believe.

but we preach Christ crucified, to Jews a stumbling block and to Gentiles foolishness