Joshua 13:21-22

The land of Reuben also included all the towns of the plain and the entire kingdom of Sihon. Sihon was the Amorite king who had reigned in Heshbon and was killed by Moses along with the leaders of Midian—Evi, Rekem, Zur, Hur, and Reba—princes living in the region who were allied with Sihon. The Israelites had also killed Balaam son of Beor, who used magic to tell the future.