2 Samuel 2:18-22

Now the three sons of Zeruiah were there, Joab, Abishai, and Asahel; and Asahel was as swift-footed as one of the gazelles that is in the field.

Asahel pursued Abner and did not turn to the right or to the left from following Abner.

Then Abner looked behind himself and said, “Is that you, Asahel?” And he said, “It is I!”

So Abner said to him, “Turn aside for your own good to your right or to your left, and take hold of one of the young men for yourself, and take for yourself his equipment.” But Asahel was unwilling to turn aside from following him.

Then Abner repeated again to Asahel, “Turn aside for your own good from following me. Why should I strike you to the ground? How then could I show my face to your brother Joab?”