Numbers 21:14-16, 27-30

Therefore it is said in the Book of the Wars of the LORD: “Waheb in Suphah, The brooks of the Arnon, And the slope of the brooks That reaches to the dwelling of Ar, And lies on the border of Moab.” From there they went to Beer, which is the well where the LORD said to Moses, “Gather the people together, and I will give them water.”

Therefore those who speak in proverbs say: “Come to Heshbon, let it be built; Let the city of Sihon be repaired. “For fire went out from Heshbon, A flame from the city of Sihon; It consumed Ar of Moab, The lords of the heights of the Arnon. Woe to you, Moab! You have perished, O people of Chemosh! He has given his sons as fugitives, And his daughters into captivity, To Sihon king of the Amorites. “But we have shot at them; Heshbon has perished as far as Dibon. Then we laid waste as far as Nophah, Which reaches to Medeba.”