Deuteronomy 2:36

“And I will set your boundary from the Red Sea to the sea of the Philistines, and from the wilderness to the River; for I will give the inhabitants of the land into your hand, and you will drive them out from before you.

Then Israel sent messengers to Sihon, king of the Amorites, saying,

And the sons of Gad built Dibon and Ataroth and Aroer,

“So we took possession of this land at that time. From Aroer, which is by the valley of Arnon, and half the hill country of Gilead and its cities I gave to the Reubenites and to the Gadites.

from Aroer, which is on the edge of the valley of Arnon, even as far as Mount Sion (that is, Hermon),

“Then you came to this place, and Sihon the king of Heshbon and Og the king of Bashan came out to meet us for battle, but we struck them down;

Sihon king of the Amorites, who lived in Heshbon and ruled from Aroer, which is on the edge of the valley of the Arnon, both the middle of the valley and half of Gilead, even as far as the brook Jabbok, the border of the sons of Ammon;

‘And Israel sent messengers to Sihon king of the Amorites, the king of Heshbon, and Israel said to him, “Please let us pass through your land to our place.”

‘So they possessed all the territory of the Amorites, from the Arnon as far as the Jabbok, and from the wilderness as far as the Jordan.

‘While Israel lived in Heshbon and its towns and in Aroer and its towns and in all the cities that are on the banks of the Arnon, 300 years, why did you not deliver them for yourself within that time?

And they crossed the Jordan and camped in Aroer, on the right side of the city that is in the middle of the valley of Gad and toward Jazer.

from the Jordan to the east toward the sunrise, all the land of Gilead, the Gadites and the Reubenites and the Manassites, from Aroer, which is by the valley of the Arnon, even Gilead and Bashan.

“Stand by the road and keep watch, O inhabitant of Aroer; Ask him who flees and her who escapes And say, ‘What has happened?’