Deuteronomy 1:3-4

It was on the first day of the eleventh month of the fortieth year when Moses addressed the People of Israel, telling them everything GOD had commanded him concerning them. This came after he had defeated Sihon king of the Amorites, who ruled from Heshbon, and Og king of Bashan, who ruled from Ashtaroth in Edrei. It was east of the Jordan in the land of Moab that Moses set out to explain this Revelation.