Deuteronomy 4:44-46

44This is the law that Moses set before the Israelites. 45These are the testimonies, statutes, and ordinances that Moses proclaimed to them after they had come out of Egypt, 46while they were in the valley across the Jordan facing Beth-peor in the land of Sihon king of the Amorites, who lived in Heshbon and was defeated by Moses and the Israelites after they had come out of Egypt.