"You are the salt of the earth. But if the salt should lose its taste, how can it be made salty? It's no longer good for anything but to be thrown out and trampled on by men.
References for Matthew 5:13
"You are the light of the world. A city situated on a hill cannot be hidden.
No one lights a lamp and puts it under a basket, but rather on a lampstand, and it gives light for all who are in the house.
References for Matthew 5:15
In the same way, let your light shine before men, so that they may see your good works and give glory to your Father in heaven.
References for Matthew 5:16