Judges 11:19-22

19And Israel sent messengers to Sihon king of the Amorites, who ruled in Heshbon, and said to him, ‘Please let us pass through your land into our own place.’ 20But Sihon would not trust Israel to pass through his territory. So he gathered all his people, encamped in Jahaz, and fought with Israel.

21Then the LORD, the God of Israel, delivered Sihon and all his people into the hand of Israel, who defeated them. So Israel took possession of all the land of the Amorites who inhabited that country, 22seizing all the land from the Arnon to the Jabbok and from the wilderness to the Jordan.