22The moment they began their shouts and praises, the LORD set ambushes against the men of Ammon, Moab, and Mount Seir who had come against Judah, and they were defeated.
23The Ammonites and Moabites rose up against the inhabitants of Mount Seir, devoting them to destruction. And when they had made an end to the inhabitants of Seir, they helped to destroy one another.
— 2 Chronicles 20:22-23