2 Kings 6:18-23

18And they came down to him; and Elisha prayed to Jehovah and said, Smite this nation, I pray thee, with blindness. And he smote them with blindness according to the word of Elisha.

19And Elisha said to them, This is not the way, neither is this the city: follow me, and I will bring you to the man whom ye seek. And he led them to Samaria.

20And it came to pass when they entered into Samaria, that Elisha said, Jehovah, open the eyes of these [men] that they may see. And Jehovah opened their eyes, and they saw, and behold, they were in the midst of Samaria.

21And the king of Israel said to Elisha, when he saw them, My father, shall I smite? shall I smite [them]?

22And he said, Thou shalt not smite [them]: wouldest thou smite those whom thou hast taken captive with thy sword and with thy bow? Set bread and water before them, that they may eat and drink, and go to their master.

23And he prepared a great repast for them, and they ate and drank; and he sent them away, and they went to their master. And the bands of Syria came no more into the land of Israel.