'Foolishness' in the Bible

For the Message of the Cross is foolishness to those who are on the way to perdition, but it is the power of God to those whom He is saving.

Where is your wise man? Where your expounder of the Law? Where your investigator of the questions of this present age? Has not God shown the world's wisdom to be utter foolishness?

For after the world by its wisdom--as God in His wisdom had ordained--had failed to gain the knowledge of God, God was pleased, by the apparent foolishness of the Message which we preach, to save those who accepted it.

while we proclaim a Christ who has been crucified--to the Jews a stumbling-block, to Gentiles foolishness,

This world's wisdom is "foolishness" in God's sight; for it is written, "He snares the wise with their own cunning."