NET

25 Absalom had made Amasa general in command of the army in place of Joab. (Now Amasa was the son of an Israelite man named Jether, who had married Abigail the daughter of Nahash and sister of Zeruiah, Joab’s mother.)

Darby

25 And Absalom set Amasa over the host instead of Joab; which Amasa was the son of a man whose name was Jithra the Israelite, that went in to Abigail the daughter of Nahash, sister to Zeruiah, Joab's mother.

KJV

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.