2 Samuel 17:24-27

24Then David came to Mahanaim. And Absalom passed over Jordan, he and all the men of Israel with him.

25And Absalom made Amasa captain of the host instead of Joab: which Amasa was a man’s son, whose name was Ithra an Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah Joab’s mother.123 26So Israel and Absalom pitched in the land of Gilead.

27And it came to pass, when David was come to Mahanaim, that Shobi the son of Nahash of Rabbah of the children of Ammon, and Machir the son of Ammiel of Lo–debar, and Barzillai the Gileadite of Rogelim,