1 Kings 20:38

34 Ben-hadad said to him, “I will restore the cities my father took from your father; you may set up your own marketplaces in Damascus, as my father did in Samaria.” “By this treaty I release you,” Ahab replied. So he made a treaty with him and sent him away.

35 Meanwhile, by the word of the LORD, one of the sons of the prophets said to his companion, “Strike me, please!” But the man refused to strike him.

36 Then the prophet said to him, “Because you have not obeyed the voice of the LORD, as soon as you depart from me a lion will kill you.” And when he left, a lion found him and killed him.

37 Then the prophet found another man and said, “Strike me, please!” So the man struck him and wounded him,

38 and the prophet went and waited on the road for the king, disguising himself with a bandage over his eyes.

39 As the king passed by, he cried out to the king: “Your servant had marched out into the middle of the battle, when suddenly a man came over with a captive and told me, ‘Guard this man! If he goes missing for any reason, your life will be exchanged for his life, or you will weigh out a talent of silver.’

40 But while your servant was busy here and there, the man disappeared.” And the king of Israel said to him, “So shall your judgment be; you have pronounced it on yourself.”

41 Then the prophet quickly removed the bandage from his eyes, and the king of Israel recognized him as one of the prophets.

42 And the prophet said to the king, “This is what the LORD says: ‘Because you have let slip from your hand the man I had devoted to destruction, your life will be exchanged for his life, and your people for his people.’”

Read all of 1 Kings 20