2 Samuel 2:20 (BSB)

And Abner glanced back and said, “Is that you, Asahel?” “It is,” Asahel replied.

From 2 Samuel 2. Also in the ESV.

Commentary on 2 Samuel 2:20

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Samuel 2:18-24: We have here the contest between Abner and Asahel. Asahel, the brother of Joab and cousin-german to David, was one of the principal commanders of David's forces, and was famous for swiftness in running: he was as light of foot as a wild roe (Sa2 2:18); this he got the name of by swift pursuing, not swift flying.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Samuel 2:20: Then Abner looked behind him,.... Perceiving one at his heels, and making haste up to him. And said, art thou Asahel? for it seems he knew him personally, being well acquainted with his family: and he answered, I am; so that they were very near to each other, as to discourse together, and be heard and understood by each other.
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on 2 Samuel 2:20-22: 2Sa 2:20-22 Then Abner turned round, asked him whether he was Asahel, and said to him, “Turn to thy right hand or to thy left, and seize one of the young men and take his armour for thyself,” i.e., slay one of the common soldiers, and take his accoutrements as booty, if thou art seeking for that kind of fame. But Asahel would not turn back from Abner.