2 Chronicles 18:28-32

28So the king of Israel and Jehoshaphat king of Judah went up against Ramoth-gilead.

29And 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 they went into battle.

30Now the king of Aram had commanded the commanders of his chariots, saying, “Do not fight with the small or great, but only with the king of Israel.”

31So when the commanders of the chariots saw Jehoshaphat, they said, “He is the king of Israel!” And they turned aside to fight against him. But Jehoshaphat 1cried out, and the Lord helped him, and God diverted them from him.

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