Deuteronomy 4:47

45These are the testimonies, and the statutes, and the ordinances which Moses spoke to the children of Israel when they came out of Egypt,

46beyond the Jordan, in the valley opposite Beth Peor, in the land of Sihon king of the Amorites, who lived at Heshbon, whom Moses and the children of Israel struck when they came out of Egypt.

47They took possession of his land and the land of Og king of Bashan, the two kings of the Amorites, who were beyond the Jordan toward the sunrise;

48from Aroer, which is on the edge of the valley of the Arnon, even to Mount Siyon (also called Hermon),

49and all the Arabah beyond the Jordan eastward, even to the sea of the Arabah, under the slopes of Pisgah.