And the LORD will do to them as He did to Sihon and Og, the kings of the Amorites, when He destroyed them along with their land.
4 And the Lord shall do unto them. He promises that, when they shall come into the land of Canaan, they shall be conquerors of all its nations: and this he confirms by experience; for, as God had delivered Sihon king of the Arnorites, and Og king of Bashan, into their hands, so also He would give them the same success in subduing their other enemies.
Loth to part (we say) bids oft farewell. Moses does so to the children of Israel: not because he was loth to go to God, but because he was loth to leave them, fearing that when he had left them they would leave God.
Commenting on Deuteronomy 31:1-8
And the Lord shall give them up before your face,.... To ruin and destruction; the Targum of Jonathan is,"the Word of the Lord shall deliver them up:" that ye may do unto them according to all the commandments which I have commanded you; that is, utterly destroy them, make no covenant with them, enter into no alliances nor contract any marriages with them; but demolish...