Deuteronomy 31:4

4 And Jehovah will do to them as he did to Sihon and to Og, the kings of the Amorites, and to their land; 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 a hundred and twenty years old this day, I can no more go out and come in; and Jehovah hath said unto me, Thou shalt not go over this Jordan.

3 Jehovah thy God, he will go over before thee, he will destroy these nations from before thee, that thou mayest take possession of them: Joshua, he shall go over before thee, as Jehovah hath said.

4 And Jehovah will do to them as he did to Sihon and to Og, the kings of the Amorites, and to their land; whom he destroyed.

5 And when Jehovah giveth them up before you, ye shall do to them according to all the commandment which I have commanded you.

6 Be strong and courageous, fear them not, neither be afraid of them; for Jehovah thy God, he it is that goeth with thee; he will not leave thee, nor forsake thee.