8 We took the land at that time out of the hand of the two kings of the Amorites who were beyond the Jordan, from the valley of the Arnon to Mount Hermon;
*Minor differences ignored. Grouped by changes, with first version listed as example.
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 Psalm 133:3.
On this side Jordan - So it was when Moses wrote this book; but afterward when Israel passed over Jordan it was called the land beyond Jordan.
*More commentary available at chapter level.