John Gills Exposition of the Bible Commentary - 2 Samuel 2:19
And Asahel pursued after Abner ,.... Ambitious of the glory of taking or slaying the general of the army of Israel; trusting to his swiftness, not considering that the race is not always to the swift, and that he had to do with a veteran soldier, and he a raw young man, though valiant: and in going he turned not to the right hand nor to the left in following Abner ; he kept his eye upon him, and pursued him closely, disregarding persons on the right or left he could have made prisoners;... read more
Matthew Henry's Complete Commentary - 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 (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... read more