2 Samuel 2:17-22
English Standard Version
18And the three sons of Zeruiah were there, Joab, Abishai, and Asahel. Now Asahel was as swift of foot as a wild gazelle.
19And Asahel pursued Abner, and as he went, he turned neither to the right hand nor to the left from following Abner.
20Then Abner looked behind him and said, "Is it you, Asahel?" And he answered, "It is I."
21Abner said to him, "Turn aside to your right hand or to your left, and seize one of the young men and take his spoil." But Asahel would not turn aside from following him.
22And Abner said again to Asahel, "Turn aside from following me. Why should I strike you to the ground? How then could I lift up my face to your brother Joab?"