You, my Lord, are the everlasting God, the Creator of the ends of the earth. You will not grow tired or weary, and Your understanding no one can fathom. You give strength to the weary and increase the power of the weak. Even youths grow tired and weary, and young men stumble and fall; but when I hope in You, O, Lord, my strength will be renewed. I will soar on wings like eagles; I will run and not grow weary, I will walk and not faint. (Isa. 40:28-31)