What does 2 Samuel 17:25 mean?

And Absalom set Amasa over the host instead of Joab. Now Amasa was the son of a man, whose name was Ithra the Israelite, that went in to Abigal the daughter of Nahash, sister to Zeruiah, Joab’s mother.

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.

And Absalom set Amasa over the host instead of Joab. Now Amasa was the son of a man, whose name was Ithra the Israelite, that went in to Abigal the daughter of Nahash, sister to Zeruiah, Joab’s mother.

And Absalom put Amasa at the head of the army in place of Joab. Now Amasa was the son of a man named Ithra the Ishmaelite, who had been the lover of Abigail, the daughter of Jesse, sister of Zeruiah, Joab's mother.

and Amasa hath Absalom set instead of Joab over the host, and Amasa <FI>is<Fi> a man's son whose name is Ithra the Israelite who hath gone in unto Abigail, daughter of Nahash, sister of Zeruiah, mother of Joab;

Now Absalom appointed Amasa in Joab's stead over the army: and Amasa was the son of a man who was called Jethra, of Jezrael, who went in to Abigail the daughter of Naas, the sister of Sarvia who was the mother of Joab.

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.