“You are the salt of the earth. But if salt loses its saltiness, how will it become salty again? It's good for nothing except to be thrown away and trampled under people's feet.
References for Matthew 5:13
You are the light of the world. A city on top of a hill can't be hidden.
Neither do people light a lamp and put it under a basket. Instead, they put it on top of a lampstand, and it shines on all who are in the house.
In the same way, let your light shine before people, so they can see the good things you do and praise your Father who is in heaven.