Deuteronomy 31:1-31:6

Moses went and spoke these things to all Israel. He said to them: I am now one hundred and twenty years old, I can no longer be active. Moreover, the Lord has said to me, "You shall not go across yonder Jordan." The Lord your God Himself will cross over before you; and He Himself will wipe out those nations from your path and you shall dispossess them.--Joshua is the one who shall cross before you, as the Lord has spoken. The Lord will do to them as He did to Sihon and Og, kings of the Amorites, and to their countries, when He wiped them out. The Lord will deliver them up to you, and you shall deal with them in full accordance with the Instruction that I have enjoined upon you. Be strong and resolute, be not in fear or in dread of them; for the Lord your God Himself marches with you: He will not fail you or forsake you.