2 Samuel 3:2

2 And sons were born unto David in Hebron; and his firstborn was Amnon, of Ahinoam, the Jezreelitess;

2 Samuel 3:2 Meaning and Commentary

2 Samuel 3:2

And unto David were sons born in Hebron
He was married before he came there, had wives in his state of exile, but had no children by them there, at least no sons; if any, only daughters:

and his firstborn was Amnon, of Ahinoam the Jezreelitess;
who being mentioned first, and her son his firstborn, seems to have been his wife before be took Abigail; he had not much comfort of this firstborn son of his; see ( 2 Samuel 13:1-39 ) .

2 Samuel 3:2 In-Context

1 Now there was long war between the house of Saul and the house of David, but David waxed stronger and stronger, and the house of Saul waxed weaker and weaker.

2 And sons were born unto David in Hebron; and his firstborn was Amnon, of Ahinoam, the Jezreelitess;

3 and his second, Chileab, of Abigail who had been the wife of Nabal of Carmel; and the third, Absalom, the son of Maacah the daughter of Talmai, king of Geshur;

4 and the fourth, Adonijah, the son of Haggith; and the fifth, Shephatiah, the son of Abital;

5 and the sixth, Ithream, by Eglah, David’s wife. These were born to David in Hebron.