Devarim 3:8

8 And we took at that time out of the hand of the two melachim of the Emori the land that was on this side [i.e., east of the] Yarden, from the Wadi Arnon unto Mt Chermon;

Devarim 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).

Devarim 3:8 In-Context

6 And in cherem we utterly destroyed them, as we did unto Sichon Melech Cheshbon, in cherem utterly destroying the men, nashim, and little ones, of every town.

7 But all the behemah (livestock), and the plunder of the towns, we took for booty to ourselves.

8 And we took at that time out of the hand of the two melachim of the Emori the land that was on this side [i.e., east of the] Yarden, from the Wadi Arnon unto Mt Chermon;

9 (Which Chermon the Tzidonim call Siryon; and the Emori call it Senir;)

10 All the towns of the plain, and all Gil‘ad, and all Bashan, unto Salchah and Edrei, towns of the kingdom of Og in Bashan.