Numbers 21:25-27

²⁵And Israel taketh all these cities, and Israel dwelleth in all the cities of the Amorite, in Heshbon, and in all its villages;

²⁶for Heshbon is a city of Sihon king of the Amorite, and he hath fought against the former king of Moab, and taketh all his land out of his hand, unto Arnon;

²⁷therefore those using similes say — 'Enter ye Heshbon, Let the city of Sihon be built and ready,