שמואל ב, פרק ג׳, פסוק י״ט

After securing the backing of the elders of Israel, Abner faces a far more delicate and challenging task. He must win over the tribe of Benjamin. This mission requires special attention because Benjamin is the home tribe of Saul and his son Ish-bosheth. Naturally, the members of this tribe strongly prefer to keep the monarchy within their own family line [מצודת דוד, רד״ק, ביאור שטיינזלץ].

Abner manages to convince the tribe of Benjamin due to a combination of personal influence and undeniable political reality. First, Abner is a member of the tribe of Benjamin himself. His personal endorsement of David carries heavy weight and deeply influences his fellow tribesmen [ביאור שטיינזלץ]. Second, the people of Benjamin are already beginning to accept the changing circumstances. They clearly see David's steady success in his leadership and military campaigns. At the same time, they witness the ongoing decline of Saul's royal house, realizing that there is no promising future left for his dynasty [רד״ק].

Having successfully prepared the hearts of the elders across the tribes and specifically within Benjamin, Abner guides them toward a peaceful resolution with David. He then travels to report his success to the leadership [אברבנאל]. Arriving in Hebron, Abner brings David the good news of the nation's widespread support [ביאור שטיינזלץ]. He assures David that the people are completely united in their decision, and that both the general population of Israel and the loyal tribe of Benjamin agree that David should be their king [מצודת דוד].