2 Samuel 17:25; 2 Samuel 18:2

25 Now Absalom had set kAmasa over the army instead of Joab. Amasa was the son of a man named Ithra the Ishmaelite,1 who had married Abigal the daughter of lNahash, sister of Zeruiah, Joab's mother.


And David sent out the army, one third under the command of Joab, one third under the command of Abishai the son of Zeruiah, Joab's brother, and one third under the command of sIttai the Gittite. And the king said to the men, I myself will also go out with you.