Chapter 3 (Deuteronomy 3)

Moses, in this chapter, relates, I. The conquest of Og, king of Bashan, and the seizing of his country, Deut. 3:1-11. II. The distribution of these new conquests to the two tribes and a half, Deut. 3:12-17. Under certain provisos and limitations, Deut. 3:18-20. III. The encouragement given to Joshua to carry on the war which was so gloriously begun, Deut. 3:21, 22. IV. Moses?s request to go over into Canaan (Deut. 3:23-25), with the denial of that request, but the grant of an equivalent, Deut. 3:26-29

- Matthew Henry's Complete Commentary