'Foolish' in the Bible

This is not the way to repay the LORD, is it, you foolish and witless people? Is he not your father, who bought you, formed you, and established you?

They provoked me to jealousy over non-gods, and to be angry over their vanity. Now I'll provoke them to jealousy over a non-people; and over a foolish nation I'll provoke them to anger.