1 Corinthians 1:18, 23-25

For the word of the cross is folly 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 folly to Gentiles, but to those who are called, both Jews and Greeks, Christ the power of God and the wisdom of God. For the foolishness of God is wiser than men, and the weakness of God is stronger than men.