2 Samuel 2:18-23 tells the story of Asahel's death while chasing Abner, giving background to his mention here as a mighty warrior.

2 Samuel 3:30 explains that Joab and Abishai killed Abner to avenge Asahel's death, tying his list entry to later events.

2 Samuel 23:24 also lists Asahel among David's thirty mighty men, confirming his place in the parallel roster.