2 Samuel 3:7-8

3:7 Now Saul had a concubine named Rizpah daughter of Aiah. Ish-bosheth said to Abner, “Why did you have sexual relations with my father’s concubine?”

3:8 These words of Ish-bosheth really angered Abner and he said, “Am I the head of a dog that belongs to Judah? This very day I am demonstrating loyalty to the house of Saul your father and to his relatives and his friends! I have not betrayed you into the hand of David. Yet you have accused me of sinning with this woman today!

2 Samuel 3:27

3:27 When Abner returned to Hebron, Joab took him aside at the gate as if to speak privately with him. Joab then stabbed him in the abdomen and killed him, avenging the shed blood of his brother Asahel.

2 Samuel 3:33-38

3:33 The king chanted the following lament for Abner:

“Should Abner have died like a fool?

3:34 Your hands were not bound,

and your feet were not put into irons.

You fell the way one falls before criminals.”

All the people wept over him again. 3:35 Then all the people came and encouraged David to eat food while it was still day. But David took an oath saying, “God will punish me severely if I taste bread or anything whatsoever before the sun sets!”

3:36 All the people noticed this and it pleased them. In fact, everything the king did pleased all the people. 3:37 All the people and all Israel realized on that day that the killing of Abner son of Ner was not done at the king’s instigation.

3:38 Then the king said to his servants, “Do you not realize that a great leader has fallen this day in Israel?