'Foolish' in the Bible

For my people is foolish, they have not known me; they are sottish children, and they have no intelligence; they are wise to do evil, but to do good they have no knowledge.

And I said, Surely these are the wretched ones, they are foolish; for they know not the way of Jehovah, the judgment of their God.

Hear now this, O foolish and heartless people, who have eyes and see not; who have ears, and hear not.

But they are one and all senseless and foolish; the teaching of vanities is a stock.