Matthew 5:13-15
“You are the salt of the earth. But if the salt loses its saltiness, how can it be made salty again? It is no longer good for anything, except to be thrown out and trampled underfoot. “You are the light of the world. A town built on a hill cannot be hidden. Neither do people light a lamp and put it under a bowl. Instead they put it on its stand, and it gives light to everyone in the house.
How can I be a light in our dark world?
I can be a light in our dark world by service. If I serve others they may see my good works that will glorify our father in heaven. In other words, if I am serving a non-christian and they see me doing it heartily, they may wonder what makes me do it with a good attitude and ask why. I can tell them about Jesus Christ living in me and possibly bring them to Christ.