"The Lord is the everlasting God, the Creator of the ends of the earth. He will not grow tired or weary, & His understanding no one can fathom. He gives strength to the weary & increases the power of the weak. Even youths grow tired & weary, & young men stumble & fall; but those who hope in the Lord will renew their strength. They will soar on wings like eagles; they will run & not grow weary, they will walk & not be faint."

Isaiah 40:28-31