Deuteronomy 31:6-8

6Be strong and courageous, do not be afraid or tremble in dread before them, for it is the Lord your God who goes with you. He will not fail you or abandon you.”

7Then Moses called to Joshua and said to him in the sight of all [the people of] Israel, “Be strong and courageous, for you will go with this people into the land which the Lord has sworn to their fathers to give them, and you will give it to them as an inheritance.

8It is the Lord who goes before you; He will be with you. He will not fail you or abandon you. Do not fear or be dismayed.”