2 Samuel 3:26-27

21st Century King James Version

²⁶ And when Joab had come out from David, he sent messengers after Abner, who brought him back from the well of Sirah; but David knew it not.

²⁷ And when Abner had returned to Hebron, Joab took him aside in the gate to speak with him quietly, and smote him there under the fifth rib, so that he died for the blood of Asahel his brother.