'Witless' 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?

The princes of Zoan are complete fools;The counsel of the Pharaoh’s wisest advisors has become stupid.How can you say to Pharaoh,“I am a son of the wise, a son of ancient kings?”

When its branches are dry, they are broken off;The women come and make a fire with them.For they are not a people of understanding,Therefore He who made them will not have compassion on them,And He who created them will not be gracious to them.