2 Samuel 2:21

The three sons of Zeruiah were there: Joab, Abishai, and Asahel. Asahel was as light of foot as a wild gazelle.

Asahel pursued Abner. He didn’t turn to the right hand or to the left from following Abner.

Then Abner looked behind him and said, “Is that you, Asahel?”

He answered, “It is.”

Abner said again to Asahel, “Turn away from following me. Why should I strike you to the ground? How then could I look Joab your brother in the face?”

However, he refused to turn away. Therefore Abner with the back end of the spear struck him in the body, so that the spear came out behind him; and he fell down there and died in the same place. As many as came to the place where Asahel fell down and died stood still.

But Joab and Abishai pursued Abner. The sun went down when they had come to the hill of Ammah, that lies before Giah by the way of the wilderness of Gibeon.