Numbers 21:14-16, 27-30

For this reason The Book of the Wars of the LORD speaks of “the town of Waheb in the area of Suphah, and the ravines of the Arnon River, and the ravines that extend as far as the settlement of Ar on the border of Moab.” From there the Israelites traveled to Beer, which is the well where the LORD said to Moses, “Assemble the people, and I will give them water.”

Therefore, the ancient poets wrote this about him: “Come to Heshbon and let it be rebuilt! Let the city of Sihon be restored. A fire flamed forth from Heshbon, a blaze from the city of Sihon. It burned the city of Ar in Moab; it destroyed the rulers of the Arnon heights. What sorrow awaits you, O people of Moab! You are finished, O worshipers of Chemosh! Chemosh has left his sons as refugees, his daughters as captives of Sihon, the Amorite king. We have utterly destroyed them, from Heshbon to Dibon. We have completely wiped them out as far away as Nophah and Medeba.”