2 Kings 6:22-23

22He answered, "You shall not strike them down. Would you strike down those whom you have taken captive with your sword and with your bow? Set bread and water before them, that they may eat and drink and go to their master."

23So he prepared for them a great feast, and when they had eaten and drunk, he sent them away, and they went to their master. And the Syrians did not come again on raids into the land of Israel.