Deuteronomy 1:4-6

after he had smitten Sihon the king of the Amorites, who dwelt in Heshbon, and Og the king of Bashan, who dwelt in Ashtaroth, at Edrei. Beyond the Jordan, in the land of Moab, began Moses to declare this law, saying, Jehovah our God spake unto us in Horeb, saying, Ye have dwelt long enough in this mountain