'Foolish' in the Bible

And certain foolish and good-for-nothing men were joined with him, and made themselves strong against Rehoboam, the son of Solomon, when he was young and untested and not able to keep them back.

For the eyes of Yahweh roam throughout the earth to show Himself strong for those whose hearts are completely His. You have been foolish in this matter. Therefore, you will have wars from now on.”