now Absalom had commanded his servants, saying, “Mark now when Amnon’s heart is merry with wine, and when I tell you, ‘Strike down Amnon,’ then kill him. Do not be afraid. Haven’t I myself commanded you? Be courageous and be sons of valor!” Bible see other translations

“sons of valor.” The literal Hebrew is “sons of valor,” and it means “valiant.” A “son of” something often had the characteristics or attributes of that something. So a “son of disobedience” was disobedient. A person who was “bar mitzvah” was a “son of the commandment [law].”

Commentary for: 2 Samuel 13:28