2 Chronicles 18:29-31

American Standard Version

²⁹ And the king of Israel said unto Jehoshaphat, I will disguise myself, and go into the battle; but put thou on thy robes. So the king of Israel disguised himself; and they went into the battle. ³⁰ Now the king of Syria had commanded the captains of his chariots, saying, Fight neither with small nor great, save only with the king of Israel. ³¹ And it came to pass, when the captains of the chariots saw Jehoshaphat, that they said, It is the king of Israel. Therefore they turned about to fight against him: but Jehoshaphat cried out, and Jehovah helped him; and God moved them to depart from him.