Deuteronomy 4:47-49 English Standard Version (ESV)

47. And they took possession of his land and the land of Og, the king of Bashan, the two kings of the Amorites, who lived to the east beyond the Jordan;

48. from Aroer, which is on the edge of the Valley of the Arnon, as far as Mount Sirion (that is, Hermon),

49. together with all the Arabah on the east side of the Jordan as far as the Sea of the Arabah, under the slopes of Pisgah.

Deuteronomy 4