TSK · Deuteronomy 2:37

During the night Jacob quickly took his two wives, his two female servants, and his eleven sons and crossed the ford of the Jabbok.

Do not be hostile toward them, because I am not giving you any of their land, not even a footprint, for I have given Mount Seir as an inheritance for Esau.

But when you come close to the Ammonites, do not harass or provoke them because I am not giving you any of the Ammonites’ land as your possession; I have already given it to Lot’s descendants as their possession.”

King Sihon of the Amorites who lived in Heshbon and ruled from Aroer(on the edge of the Arnon Valley)– including the city in the middle of the valley and half of Gilead– all the way to the Jabbok Valley bordering Ammonite territory.