2 Chronicles 18:28-32

28Then the king of Israel and Judah’s King Jehoshaphat went up to Ramoth-gilead.

29But 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 they went into battle.

30Now the king of Aram had ordered his chariot commanders, “Do not fight with anyone at all except the king of Israel.”

31When the chariot commanders saw Jehoshaphat, they shouted, “He must be the king of Israel!” So they turned to attack him, but Jehoshaphat cried out and the Lord helped him. God drew them away from him.

32When the chariot commanders saw that he was not the king of Israel, they turned back from pursuing him.