Deuteronomy 31:4

And the LORD shall do unto them as he did to Sihon and to Og, kings of the Amorites, and unto the land of them, whom he destroyed.

EXPOSITORY (ENGLISH BIBLE)

Matthew Henry's Concise Commentary

31:1-8 Moses assures Israel of the constant presence of God with them. This is applied by the apostle to all God's spiritual Israel, to encourage their faith and hope; unto us is this gospel preached, as well as unto them; he will never fail thee, nor forsake thee, Heb 13:5. Moses commends Joshua to them for a leader; one whose wisdom, and courage, and affection they had long known; one whom God had appointed to be their leader; and therefore would own and bless. Joshua is well pleased to be admonished by Moses to be strong and of good courage. Those shall speed well, who have God with them; therefore they ought to be of good courage. Through God let us do valiantly, for through him we shall do victoriously; if we resist the devil, he will flee from us.

Barnes' Notes on the Bible

I am an hundred and twenty years old - The 40 years of the wandering had passed since Moses, then 80 years old, "spake unto Pharaoh" (Exodus 7:7; Compare Deuteronomy 34:7).

I can, no more go out and come in - Render I shall not longer be able to go out and come in: i. e., discharge my duties among you. There is no inconsistency with Deuteronomy 34:7. Moses here adverts to his own age as likely to render him in future unequal to the active discharge of his office as leader of the people: the writer of Deuteronomy 34:1-12, one of Moses' contemporaries, remarks of him that up to the close of life "his eye was not dim, nor his natural force abated" Deuteronomy 31:7; i. e. that he was to the last, in the judgment of others, in full possession of faculties and strength.

Jamieson-Fausset-Brown Bible Commentary

2-8. also the Lord hath said—should be "for the Lord hath said" thou shalt not go over this Jordan. While taking a solemn leave of the people, Moses exhorted them not to be intimidated by the menacing opposition of enemies; to take encouragement from the continued presence of their covenanted God; and to rest assured that the same divine power, which had enabled them to discomfit their first assailants on the east of Jordan, would aid them not less effectually in the adventurous enterprise which they were about to undertake, and by which they would obtain possession of "the land which He had sworn unto their fathers to give them."

Matthew Poole's Commentary

Which he gave to you to possess.

Gill's Exposition of the Entire Bible

And the Lord shall do unto them as he did unto Sihon, and to Og, kings of the Amorites,.... Deliver them up into their hands; see the history of this in Numbers 21:10,

and unto the land of them whom he destroyed; put them into the possession of the land of Canaan, as they were now in possession of the land of those two kings he destroyed by them. This instance is given to encourage their faith, assuring them that what had been done to them would be done to the Canaanitish kings, and their subjects, and their lands.

Geneva Study Bible

And the LORD shall do unto them as he did to Sihon and to Og, kings of the Amorites, and unto the land of them, whom he destroyed.

EXEGETICAL (ORIGINAL LANGUAGES)

Cambridge Bible for Schools and Colleges

4. Sihon … Og] Deuteronomy 2:32 ff., Deuteronomy 3:1 ff., Deuteronomy 29:7; Amorites, Deuteronomy 3:8.

Deuteronomy 31:4

Keil and Delitzsch Biblical Commentary on the Old Testament

But although Moses could not, and was not to lead his people into Canaan, the Lord would fulfil His promise, to go before Israel and destroy the Canaanites, like the two kings of the Amorites; only they (the Israelites) were to do to them as the Lord had commanded them, i.e., to root out the Canaanites (vid., Deuteronomy 7:2.; Numbers 33:51.; Exodus 34:11.).