2 Samuel 2:14

Play, like the gladiators with drawn swords, which formed one of the principal diversions at Rome, (Calmet) while it was pagan. This might be considered as a prelude to the ensuing engagement; or like a detachment of twelve on each side, fighting to shew the prowess of their respective armies; as the three Horatii and Curiatii did afterwards, to spare the effusion of blood. But there is no mention that Abner and Joab had authority to agree that these champions should decide the fate of the two kingdoms, (Haydock) whence they are generally accused of ostentation; though the soldiers, not being acquainted with their motives, were obliged to obey. (Tirinus; Menochius)