Numbers 21:23-25

Young's Literal Translation

²³ And Sihon hath not suffered Israel to pass through his border, and Sihon gathereth all his people, and cometh out to meet Israel into the wilderness, and cometh in to Jahaz, and fighteth against Israel.

²⁴ And Israel smiteth him by the mouth of the sword, and possesseth his land from Arnon unto Jabbok -- unto the sons of Ammon; for the border of the sons of Ammon [is] strong.

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