Deuteronomy 31:7-8

7Then Moses called for Joshua and said to him in the presence of all Israel, “Be strong and courageous. You will go with these people into the land that the Lord will give them, as he swore to their ancestors. You will help them take possession of the land.

8The Lord is the one who is going ahead of you. He will be with you. He won’t abandon you or leave you. So don’t be afraid or terrified.”