Abner selected all his combatants out of Benjamin, both because that was a warlike and valiant tribe, and that he might give the more honour to his own tribe.
Related Commentaries of 2 Samuel 2:15
2 Samuel 2:15
15 Then there arose and went over by number twelve of Benjamin, which pertained to Ishbosheth the son of Saul, and twelve of the servants of David.