1 Corinthians 1:18, 23-25

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

but we preach Christ crucified: a stumbling block to Jews and foolishness to Gentiles, but to those whom God has called, both Jews and Greeks, Christ the power of God and the wisdom of God. For the foolishness of God is wiser than human wisdom, and the weakness of God is stronger than human strength.