1 Kings 22:29-33

29Then the king of Israel and Judah’s King Jehoshaphat went up to Ramoth-gilead.

30But the king of Israel said to Jehoshaphat, “I will disguise myself and go into battle, but you wear your royal attire.” So the king of Israel disguised himself and went into battle.

31Now the king of Aram had ordered his thirty-two chariot commanders, “Do not fight with anyone at all except the king of Israel.”

32When the chariot commanders saw Jehoshaphat, they shouted, “He must be the king of Israel!” So they turned to fight against him, but Jehoshaphat cried out.

33When the chariot commanders saw that he was not the king of Israel, they turned back from pursuing him.