Numbers 21:27

25Israel took all these cities. Israel lived in all the cities of the Amorites, in Heshbon, and in all its villages.

26For Heshbon was the city of Sihon the king of the Amorites, who had fought against the former king of Moab, and taken all his land out of his hand, even to the Arnon.

27Therefore those who speak in proverbs say, “Come to Heshbon. Let the city of Sihon be built and established;

28for a fire has gone out of Heshbon, a flame from the city of Sihon. It has devoured Ar of Moab, The lords of the high places of the Arnon.

29Woe to you, Moab! You are undone, people of Chemosh! He has given his sons as fugitives, and his daughters into captivity, to Sihon king of the Amorites.