Abner said to him, “Turn aside to your right or to your left. Capture one of the soldiers and take his equipment for yourself!” But Asahel was not willing to turn aside from following him.
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.
Make sure you are very strong and brave! Carefully obey all the law my servant Moses charged you to keep! Do not swerve from it to the right or to the left, so that you may be successful in all you do.