Deuteronomy 31:3-5

King James Version

³ The Lord thy God, he will go over before thee, and he will destroy these nations from before thee, and thou shalt possess them: and Joshua, he shall go over before thee, as the Lord hath 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.