God chose foolish and weak things

“But God chose the foolish things of the world to shame the wise; God chose the weak things of the world to shame the strong.” (1 Cor. 1:27 NIV)

God made foolish the wisdom of the world

“Where is the wise man? Where is the scribe? Where is the philosopher of this age? Has not God made foolish the wisdom of the world?” (1 Cor. 1:20)

God confounds the wise

“…who foils the signs of false prophets and makes fools of diviners, who confounds the wise and turns their knowledge into nonsense…” (Isa. 44:25)

The wise will be out to shame

“The wise will be put to shame; they will be dismayed and snared. They have rejected the word of the LORD, so what wisdom do they really have?” (Jer. 8:9)

Therefore…

“We have not received the spirit of the world, but the Spirit who is from God, that we may understand what God has freely given us.” (1 Cor. 2:12)

“For since in the wisdom of God, the world through its wisdom did not know Him, God was pleased through the foolishness of what was preached to save those who believe.” (1 Cor. 1:21 ESV)