I am the salt and light of the world

You are the salt of the Earth. But if salt loses its saltiness, how can it be made salty again? It is no longer useful for anything, except to be thrown out and trampled by men. You are the light of the world. A city on a hill cannot be hidden. In the same way, nobody lights a lamp and hides it under a bowl. Instead they put it on its stand and it gives light to the whole house. Let your light shine before men that they may see your good deeds and praise your Father in heaven.
~ Matthew 5:13-17

Christian or not, I dare you to watch this and NOT be grinning from ear to ear by the end! :D