You are the light of the world. A city that is set on a hill cannot be hid.
All Commentaries on Matthew 5:14 Go To Matthew 5
John Chrysostom
AD 407
You are the light of the world—not of a single nation nor of twenty cities but of the entire inhabited earth. You are like a light for the mind, far better than any particular sunbeam. Similarly, you are spiritual salt. First you are salt. Then you are light. The metaphors of salt and light drive home the great benefit of these stinging words and the profit of this rigorous discipline, how it binds and does not permit us to become dissolute in our behavior. The Gospel of Matthew, Homily