1 Corinthians 1:18, 23-24
1 Corinthians 1:18 KJV
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 1:23-24 KJV
but we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness; but unto them which are called, both Jews and Greeks, Christ the power of God, and the wisdom of God.