2 Kings 6:22

And he, with the proper humaneness which would consider it highly improper to take a mean advantage of an enemy, answered, Thou shalt not smite them. Wouldest thou smite those whom thou hast taken captive with thy sword and with thy bow? The meaning is: If thou shouldst put these to death, could thy action be justified as in the case of prisoners of war? Set bread and water before them, preparing them a bounteous meal, that they may eat and drink and go to their master.