'Be Strong' in the Bible

Be strong and be courageous; you should not be afraid, and you {should not be in dread from their presence}, for Yahweh your God [is] the [one] going with you; he will not leave you alone and he will not forsake you."

Then Moses summoned Joshua, and he said to him {in the presence of all Israel}, "Be strong and be courageous, for you will go with this people into the land that Yahweh swore to their ancestors to give to them, and you will give it to them as an inheritance.

Then he told Joshua the son of Nun, and said [to him], "Be strong and be courageous, for you shall bring the {Israelites} into the land that I swore to them, and I will be with you."