‘Be strong and of good courage means to focus on God as the source of our strength. To be strong means to look beyond your physical strength because your physical strength will fail. The bible says in Proverbs 24 verse 10, “If you faint in the day of adversity, your strength is small.” The giver of strength is telling us to be strong. He is the everlasting God, the Lord, and the Creator of the ends of the earth. He will never faint nor is He weary. His understanding is unsearchable. He gives power to the weak, and to those who have no might, He increases strength. (Isaiah 40: 29-29).