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 (2 Sam. 2:18); this he got the name of by swift pursuing, not swift flying. Yet, we may suppose, he was not comparable to Abner as a skilful experienced soldier; we must therefore observe,
I. How rash he was in aiming to make Abner his prisoner. He pursued after him, and no other, 2 Sam. 2:19. Proud of his relation to David and Joab, his own swiftness, and the success of his party, no less a trophy of victory would now serve the young warrior than Abner himself, either slain or bound, which he thought would put an end to the war and effectually open David’s way to the throne. This made him very eager in the pursuit, and careless of the opportunities he had of seizing others in his way, on his right hand and on his left; his eye was on Abner only. The design was brave, had he been par negotio—equal to its accomplishment: but let not the swift man glory in his swiftness, any more than the strong man in his strength; magnis excidit ausis—he perished in an attempt too vast for him.
II. How generous Abner was in giving him notice of the danger he exposed himself to, and advising him not to meddle to his own hurt, 2 Chron. 25:19. 1. He bade him content himself with a less prey (2 Sam. 2:21): “Lay hold of one of the young men, plunder him and make him thy prisoner, meddle with thy match, but pretend not to one who is so much superior to thee.” It is wisdom in all contests to compare our own strength with that of our adversaries, and to take heed of being partial to ourselves in making the comparison, lest we prove in the issue enemies to ourselves, Luke 14:31. 2. He begged of him not to put him upon the necessity of slaying him in his own defence, which he was very loth to do, but must do rather than be slain by him, 2 Sam. 2:22. Abner, it seems, either loved Joab or feared him; for he was very loth to incur his displeasure, which he would certainly do if he slew Asahel. It is commendable for enemies to be thus respectful one to another. Abner’s care how he should lift up his face to Joab gives cause to suspect that he really believed David would have the kingdom at last, according to the divine designation, and then, in opposing him, he acted against his conscience.
III. How fatal Asahel’s rashness was to him. He refused to turn aside, thinking that Abner spoke so courteously because he feared him; but what came of it? Abner, as soon as he came up to him, gave him his death’s wound with a back stroke (2 Sam. 2:23): He smote him with the hinder end of his spear, from which he feared no danger. This was a pass which Asahel was not acquainted with, nor had learned to stand upon his guard against; but Abner, perhaps, had formerly used it, and done execution with it; and here it did effectual execution. Asahel died immediately of the wound. See here, 1. How death often comes upon us by ways that we least suspect. Who would fear the hand of a flying enemy or the butt-end of a spear? yet from these Asahel receives his death’s wound. 2. How we are often betrayed by the accomplishments we are proud of. Asahel’s swiftness, which he presumed so much upon, did him no kindness, but forwarded his fate, and with it he ran upon his death, instead of running from it. Asahel’s fall was not only Abner’s security from him, but put a full stop to the conqueror’s pursuit and gave Abner time to rally again; for all that came to the place stood still, only Joab and Abishai, instead of being disheartened, were exasperated by it, pursued Abner with so much the more fury (2 Sam. 2:24), and overtook him at last about sunset, when the approaching night would oblige them to retire.