2 Chronicles 20:22-24

20:22 When they began to shout and praise, the Lord suddenly attacked the Ammonites, Moabites, and men from Mount Seir who were invading Judah, and they were defeated. 20:23 The Ammonites and Moabites attacked the men from Mount Seir and annihilated them. When they had finished off the men of Seir, they attacked and destroyed one another. 20:24 When the men of Judah arrived at the observation post overlooking the desert and looked at the huge army, they saw dead bodies on the ground; there were no survivors!