Unto David sons were born of Ahinoam He had no children, it seems, by this wife during his exile; or if he had, they were daughters. The daughter of Talmai, king of Geshur A part of Syria, northward from the land of Israel. How David came by this wife it is not easy to say. Perhaps he married her out of policy, that he might have a powerful friend and ally in her father, to assist him against Ish-bosheth's party in the north, while himself opposed them in the south. But if so, he paid dear for making piety give place to policy, as the history of Absalom, whom he had by her, shows.
Related Commentaries of 2 Samuel 3:2
2 Samuel 3:2-3
2 And unto David were sons born in Hebron: and his firstborn was Amnon, of Ahinoam the Jezreelitess;
3 And his second, Chileab,a of Abigail the wife of Nabal the Carmelite; and the third, Absalom the son of Maacah the daughter of Talmai king of Geshur;