Deuteronomy 31:4

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.

Deuteronomy 31:4 Meaning and Commentary

Deuteronomy 31:4

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 21:10-35 ) ;

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.

Deuteronomy 31:4 In-Context

2 and he said unto them, I am one hundred and twenty years old today; I can no longer go out and come in; also the LORD has said unto me, Thou shalt not pass this Jordan.

3 The LORD thy God, he will pass in front of thee, and he will destroy these Gentiles from before thee, and thou shalt inherit them; Joshua shall be the one who shall pass before thee, as the LORD has said.

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.

5 And the LORD shall give them up before your face that ye may do unto them according unto all the commandments which I have commanded you.

6 Be strong and of a good courage; fear not, nor be afraid of them, for the LORD thy God is he that doth go with thee; he will not fail thee nor forsake thee.