Matthew 5:14-16

14 "You are light for the world. A town built on a hill cannot be hidden.
15 Likewise, when people light a lamp, they don't cover it with a bowl but put it on a lampstand, so that it shines for everyone in the house.
16 In the same way, let your light shine before people, so that they may see the good things you do and praise your Father in heaven.

Matthew 5:14-16 In-Context

12 Rejoice, be glad, because your reward in heaven is great -- they persecuted the prophets before you in the same way.
13 "You are salt for the Land. But if salt becomes tasteless, how can it be made salty again? It is no longer good for anything except being thrown out for people to trample on.
14 "You are light for the world. A town built on a hill cannot be hidden.
15 Likewise, when people light a lamp, they don't cover it with a bowl but put it on a lampstand, so that it shines for everyone in the house.
16 In the same way, let your light shine before people, so that they may see the good things you do and praise your Father in heaven.
17 "Don't think that I have come to abolish the Torah or the Prophets. I have come not to abolish but to complete.
18 Yes indeed! I tell you that until heaven and earth pass away, not so much as a yud or a stroke will pass from the Torah -- not until everything that must happen has happened.