1 Corinthians 1:17-18, 21, 30-31

For Christ did not send me to baptize, but to preach the gospel, not in cleverness of speech, so that the cross of Christ would not be made void. 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 by His doing you are in Christ Jesus, who became to us wisdom from God, and righteousness and sanctification, and redemption, so that, just as it is written, “LET HIM WHO BOASTS, BOAST IN THE LORD.”