1 Kings 22:26-30

26Then the king of Israel said, “Take Micaiah and return him to Amon, the governor of the city, and to Joash, the king’s son,

27and say, ‘Thus says the king, “Put this man in prison, and feed him sparingly with the bread and water until I return safely.” ’ ”

28Micaiah said, “If you indeed return safely, the Lord has not spoken by me.” Then he said, “Listen, all you people.”

29So [Ahab] the king of Israel and Jehoshaphat the king of Judah went up to Ramoth-gilead.

30The king of Israel said to Jehoshaphat, “I will disguise myself and enter the battle, but you put on your [royal] clothing.” So the king of Israel disguised himself and went into the battle.