JOAB, 1. Son of David's sister
Absalom set Amasa over the army instead of JOAB. Now Amasa was the son of a man whose name was Ithra the Israelite, who went in to Abigail the daughter of Nahash, sister to Zeruiah, JOAB's mother.
Say to Amasa, 'Aren't you my bone and my flesh? God do so to me, and more also, if you aren't captain of the army before me continually instead of JOAB.'"