2 Samuel 17:25

25Absalom had appointed Amasa over the army in place of Joab. Amasa was the son of Jether, Hebrew Ithra, a variant of Jether an Ishmaelite Some Septuagint manuscripts (see also 1 Chron. 2:17); Hebrew and other Septuagint manuscripts Israelite who had married Abigail, Hebrew Abigal, a variant of Abigail the daughter of Nahash and sister of Zeruiah the mother of Joab.