Numbers 21:14-16, 27-30

Therefore it is said in the Book of the Wars of the LORD, “Waheb in Suphah, And the wadis of the Arnon, And the slope of the wadis That extends to the site of Ar, And leans to the border of Moab.” From there they continued to Beer, that is the well where the LORD said to Moses, “Assemble the people, that I may give them water.”

Therefore those who use proverbs say, “Come to Heshbon! Let it be built! So let the city of Sihon be established. For a fire went forth from Heshbon, A flame from the town of Sihon; It devoured Ar of Moab, The dominant heights of the Arnon. Woe to you, O Moab! You are ruined, O people of Chemosh! He has given his sons as fugitives, And his daughters into captivity, To an Amorite king, Sihon. But we have cast them down, Heshbon is ruined as far as Dibon, Then we have laid waste even to Nophah, Which reaches to Medeba.”