1 Kings 21:27

21:27 When Ahab heard these words, he tore his clothes, put on sackcloth, and fasted. He slept in sackcloth and walked around dejected.

1 Kings 22:30

22:30 The king of Israel said to Jehoshaphat, “I will disguise myself and then enter into the battle; but you wear your royal robes.” So the king of Israel disguised himself and then entered into the battle.