2 Samuel 3:23

19Abner also spoke in the ears of Benjamin; and Abner went also to speak in the ears of David in Hebron all that seemed good to Israel and to the whole house of Benjamin.

20So Abner came to David to Hebron, and twenty men with him. David made Abner and the men who were with him a feast.

21Abner said to David, “I will arise and go, and will gather all Israel to my lord the king, that they may make a covenant with you, and that you may reign over all that your soul desires.” David sent Abner away; and he went in peace.

22Behold, David’s servants and Joab came from a raid and brought in a great plunder with them; but Abner was not with David in Hebron, for he had sent him away, and he had gone in peace.

23When Joab and all the army who was with him had come, they told Joab, “Abner the son of Ner came to the king, and he has sent him away, and he has gone in peace.”

24Then Joab came to the king and said, “What have you done? Behold, Abner came to you. Why is it that you have sent him away, and he is already gone?

25You know Abner the son of Ner. He came to deceive you, and to know your going out and your coming in, and to know all that you do.”

26When Joab had come out from David, he sent messengers after Abner, and they brought him back from the well of Sirah; but David didn’t know it.

27When Abner had returned to Hebron, Joab took him aside into the middle of the gate to speak with him quietly, and struck him there in the body, so that he died for the blood of Asahel his brother.