'Foolish' in the Bible

Where is the wise man? Where is the scribe? Where is the debater of this age? Has not God made foolish the wisdom of the world?

but God has chosen the foolish things of the world to shame the wise, and God has chosen the weak things of the world to shame the things which are strong,

Let no man deceive himself. If any man among you thinks that he is wise in this age, he must become foolish, so that he may become wise.