'Foolish' in the Bible

Who has said, by the Holy Spirit, through the mouth of our father David your servant, Why are the nations so violently moved, and why are the thoughts of the people so foolish?

Good people, why are you doing these things? We are men with the same feelings as you, and we give you the good news so that you may be turned away from these foolish things to the living God, who made the heaven and the earth and the sea and all things in them:

And some of those who were supporters of the theories of the Epicureans and the Stoics, had a meeting with him. And some said, What is this talker of foolish words saying? And others, He seems to be a preacher of strange gods: because he was preaching of Jesus and his coming back from the dead.