Deuteronomy 31:1-8

¶ And Moses went and spoke these words unto all Israel, and he said unto them, I am one hundred and twenty years old today; I can no longer go out and come in; also the LORD has said unto me, Thou shalt not pass this Jordan. The LORD thy God, he will pass in front of thee, and he will destroy these Gentiles from before thee, and thou shalt inherit them; Joshua shall be the one who shall pass before thee, as the LORD has said. 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. 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. Be strong and of a good courage; fear not, nor be afraid of them, for the LORD thy God is he that doth go with thee; he will not fail thee nor forsake thee. And Moses called unto Joshua and said unto him in the sight of all Israel, Be strong and of a good courage, for thou shalt enter in with this people to the land which the LORD has sworn unto their fathers to give them, and thou shalt cause them to inherit it. And the LORD is he that doth go before thee; he will be with thee; he will not fail thee, neither forsake thee; fear not, neither be dismayed.