Deuteronomy 31:1-6 TMB

1 And Moses went and spoke these words unto all Israel.
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. Also the LORD hath said unto me, `Thou shalt not go over this Jordan.'
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 those 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 good courage, fear not, nor be afraid of them; for the LORD thy God, He it is who doth go with thee. He will not fail thee nor forsake thee."