8 And we took at that time the land out of the hand of the two kings of the Amorites, that were on this side the Jordan, from the river Arnon to mount Hermon

Matthew Henry's Commentary on Deuteronomy 3:8

Commentary on Deuteronomy 3:1-11

(Read Deuteronomy 3:1-11)

1-11 Og was very powerful, but he did not take warning by the ruin of Sihon, and desire conditions of peace. He trusted his own strength, and so was hardened to his destruction. Those not awakened by the judgments of God on others, ripen for the like judgments on themselves.