'Be Strong' in the Bible

Be courageous, and let us be strong for our people, and for the cities of our God. May the LORD do that which seems good to him."

Then you will prosper, if you observe to do the statutes and the ordinances which the LORD gave Moses concerning Israel. Be strong, and courageous. Do not be afraid, neither be dismayed.

Take heed now; for the LORD has chosen you to build a house for the sanctuary. Be strong, and do it."

David said to Solomon his son, "Be strong and courageous, and do it. Do not be afraid, nor be dismayed; for the LORD God, even my God, is with you. He will not fail you, nor forsake you, until all the work for the service of the house of the LORD is finished.