1 Kings 22:27-30

27and say, ‘Thus says the king: “Put this fellow in prison, and feed him with bread of affliction and water of affliction, until I come in peace.” ’ ”

28But Micaiah said, “If you ever return in peace, the Lord has not spoken by me.” And he said, “Take heed, all you people!”

29So the king of Israel and Jehoshaphat the king of Judah went up to Ramoth Gilead.

30And the king of Israel said to Jehoshaphat, “I will disguise myself and go into battle; but you put on your robes.” So the king of Israel disguised himself and went into battle.