Divrey Hayamim Bais 20:22-24

Orthodox Jewish Bible

²² And when they began with rinnah and tehillah, Hashem set me’arevim (ambushers) against the Bnei Ammon, Moav, and Mt Seir, which were come against Yehudah, and they were struck down.

²³ For the Bnei Ammon and Moav stood up against the inhabitants of Mt Seir, utterly to slay and destroy them. And when they had made an end of the inhabitants of Seir, every one helped to destroy another.

²⁴ And when Yehudah came toward the mitzpeh (guard tower) in the midbar, they looked toward the multitude, and, hinei, they were pegarim (corpses) fallen on the ground, and there was no escapee.