2 Chronicles 20:21-23

New Catholic Bible

²¹ After conferring with the people, Jehoshaphat appointed some to sing to the Lord and praise the splendor of his holiness as they marched forth at the head of the army:

²² At the moment they began their hymn of praise, the Lord set an ambush against the Ammonites, the Moabites, and the people from Mount Seir who were invading Judah. As a result, they were routed. ²³ For the Ammonites and the Moabites turned against the people of Mount Seir and completely destroyed them. Then, when they had finished off the inhabitants of Mount Seir, they proceeded to destroy each other.