Deuteronomy 31:5-8

The LORD will deliver them up before you, and you shall do to them according to all the commandments which I have commanded you. Be strong and courageous, do not be afraid or tremble at them, for the LORD your God is the one who goes with you. He will not fail you or forsake you.” Then Moses called to Joshua and said to him in the sight of all Israel, “Be strong and courageous, for you shall go with this people into the land which the LORD has sworn to their fathers to give them, and you shall give it to them as an inheritance. The LORD is the one who goes ahead of you; He will be with you. He will not fail you or forsake you. Do not fear or be dismayed.”