'Foolish' in the Bible

"For my people [are] foolish, they have not known me. They [are] foolish children, and they do not have insight. They [are] skillful at doing evil, and they do not know [how] to do good."

Then I said, "[They are] just simple people, they are foolish, for they know not the way of Yahweh, the law of their God.

Hear this please, foolish and {senseless} people, {who have eyes} but do not see, {who have ears} but do not hear.'

{At the same time} they are stupid and foolish, [in the] instruction of idols, it [is] wood.

A sword against the oracle priests, and they will become foolish. A sword against her warriors, and they will be filled with terror.