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.
When David had come to Mahanaim, Shobi the son of Nahash of Rabbah of the children of Ammon, and Machir the son of Ammiel of Lodebar, and Barzillai the Gileadite of Rogelim,
This was the lot for the tribe of Manasseh, for he was the firstborn of Joseph. As for Machir the firstborn of Manasseh, the father of Gilead, because he was a man of war, therefore he had Gilead and Bashan.