John Gill Bible Commentary

And the name of Saul's wife was Ahinoam, the daughter of Ahimaaz,.... Who very probably was the mother of all the above children, and therefore taken notice of; and Abarbinel conjectures that Ishbosheth was not a son of her's, but the son of Saul by another wife, and which he takes to be another reason why he is not mentioned here; but though Saul had a concubine, we nowhere read of his having another wife: and the name of the captain of his host was Abner the son of Ner, Saul's uncle; not Abner, but Ner, was Saul's uncle; for Kish the father of Saul, and Ner, were brothers, as Josephus (p) says, and as appears from the next verse; and Abner was first cousin to Saul, whom he raised and advanced to be captain of his army, and a very valiant man he was: we hear of him again in this history, and in the beginning of David's reign. (p) Ut supra. (Antiqu. l. 6. c. 6. sect. 5.)