In the list of David’s wives Ahinoam is mentioned first 2 Samuel 3:2; 1 Chronicles 3:1. But this may be only because her son was the first-born. David’s now taking two wives was an indication of his growing power and importance as a chieftain. The number was increased to six when he reigned in Hebron 1 Chronicles 3:1, and still further when he became king of all Israel 2 Samuel 5:12-13. See 1 Samuel 1:2 note.
Of Jezreel - Not the well-known city of Samaria, which gave its name to the plain of Esdraelon, but a town of Judah, near Carmel (marginal reference).