Numbers 21:26-29 King James Version (KJV)
26 For 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 unto Arnon.
27 Wherefore they that speak in proverbs say, Come into Heshbon, let the city of Sihon be built and prepared:
28 For there is a fire gone out of Heshbon, a flame from the city of Sihon: it hath consumed ar of Moab, and the lords of the high places of Arnon.
29 Woe to thee, Moab! thou art undone, O people of Chemosh: he hath given his sons that escaped, and his daughters, into captivity unto Sihon king of the Amorites.