Deuteronomy 31:6-7, 23

Be strong and of good courage, do not fear nor be afraid of them; for the LORD your God, He is the One who goes with you. He will not leave you nor forsake you.” Then Moses called Joshua and said to him in the sight of all Israel, “Be strong and of good courage, for you must go with this people to the land which the LORD has sworn to their fathers to give them, and you shall cause them to inherit it.

Then He inaugurated Joshua the son of Nun, and said, “Be strong and of good courage; for you shall bring the children of Israel into the land of which I swore to them, and I will be with you.”