Deuteronomy 3:8

8 "At that time we took from those two Amorite kings the land east of the Jordan River, from the Arnon River to Mount Hermon

Deuteronomy 3:8 Meaning and Commentary

Deuteronomy 3:8

And we took at that time out of the hands of the two kings of
the Amorites
Sihon king of Heshbon, and Og king of Bashan;

the land that [was] on this side Jordan;
where Moses then was, being in the plains of Moab, and was the country beyond Jordan, with respect to the land of Canaan, and when in that:

from the river of Arnon unto Mount Hermon;
Arnon was a river which divided Moab and the Amorites, ( Numbers 22:13 ) and Hermon was a mountain of Gilead, which ended where Lebanon began, and was the northerly border of this country. It was remarkable for the dew that fell on it; (See Gill on Psalms 133:3).

Deuteronomy 3:8 In-Context

6 We destroyed all the towns and put to death all the men, women, and children, just as we did in the towns that belonged to King Sihon of Heshbon.

7 We took the livestock and plundered the towns.

8 "At that time we took from those two Amorite kings the land east of the Jordan River, from the Arnon River to Mount Hermon

9 (Mount Hermon is called Sirion by the Sidonians, and Senir by the Amorites.)

10 We took all the territory of King Og of Bashan: the cities on the plateau, the regions of Gilead and of Bashan, as far east as the towns of Salecah and Edrei."