Joshua 24:8 summarizes the same event: defeating Amorites beyond the Jordan and taking their land, echoing the conquest of Sihon.

Numbers 21:24-26 recounts the original conquest of Sihon and his capital Heshbon, providing the historical basis for the land division here.

Deuteronomy 1:4 records Moses defeating Sihon of Heshbon, directly linking the conquest event to the territory described.

Judges 11:26 cites Heshbon, Aroer, and Arnon as proof of Israel's long possession — the same cities from Joshua's allotment.