And it came to pass, when the captains of the chariots saw Jehoshaphat, that they said, Surely it is the king of Israel. And they turned aside to fight against him: and Jehoshaphat cried out.
Read Chapter 22
George Leo Haydock
Cried out. Paralipomenon add, to the Lord, and he helped him, and turned them away from him. The Jews (in Seder. Olam xvii.) acknowledge the same thing; and thus it was known that Josaphat was not the king of Israel, who would rather have invoked Baal. (Menochius)
Perhaps he also declared the truth, and who he was, when he saw the Syrians surround him, crying, This is the king of Israel! (2 Paralipomenon xviii. 31.) (Tirinus)