Deuteronomy 31:4

4 The LORD will do to them as he did to Sichon and to `Og, the kings of the Amori, 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 He said to them, I am one hundred twenty years old this day; I can no more go out and come in: and the LORD has said to me, You shall not go over this Yarden.
3 The LORD your God, he will go over before you; he will destroy these nations from before you, and you shall dispossess them: [and] Yehoshua, he shall go over before you, as the LORD has spoken.
4 The LORD will do to them as he did to Sichon and to `Og, the kings of the Amori, and to their land; whom he destroyed.
5 The LORD will deliver them up before you, and you shall do to them according to all the mitzvah which I have commanded you.
6 Be strong and of good courage, don't be afraid, nor be scared of them: for the LORD your God, he it is who does go with you; he will not fail you, nor forsake you.
The Hebrew Names Version is in the public domain.