Now Absalom had set Amasa over the army instead of Joab. Amasa was the son of a man named Ithra the Ishmaelite, who had married Abigal the daughter of Nahash, sister of Zeruiah, Joab's mother.
When David came to Mahanaim, Shobi the son of Nahash from Rabbah of the Ammonites, and Machir the son of Ammiel from Lo-debar, and Barzillai the Gileadite from Rogelim,
Then allotment was made to the tribe of Manasseh, for he was the first-born of Joseph. To Machir the first-born of Manasseh, the father of Gilead, were allotted Gilead and Bashan, because he was a man of war.