Deuteronomy 4:47-51

And they possessed his land, and the land of Og king of Bashan, two kings of the Amorites, which were on this side Jordan toward the sunrising;

From Aroer, which is by the bank of the river Arnon, even unto mount Sion, which is Hermon,

And all the plain on this side Jordan eastward, even unto the sea of the plain, under the springs of Pisgah.