23 and the sons of Ammon stand up, and Moab, against the inhabitants of mount Seir, to devote and to destroy, and at their finishing with the inhabitants of Seir, they helped, a man against his neighbour, to destroy.
23
The Ammonites and Moabites rose up against the men from Mount Seir to destroy and annihilate them. After they finished slaughtering the men from Seir, they helped to destroy one another.
Young's Literal Translation is in the public domain.