2 Samuel 17:25-26

25 ¶ And 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. 26 So Israel and Absalom pitched in the land of Gilead.