Deuteronomy 31:1-6 WBT

1 And Moses went and spoke these words to all Israel.
2 And he said to 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 to 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 to them as he did to Sihon, and to Og, kings of the Amorites, and to the land of them, whom he destroyed.
5 And the LORD shall give them up before your face, that ye may do to them according to 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, he [it is] that doth go with thee, he will not fail thee, nor forsake thee.