Matthew 5:16 Let your light so shine before men, that they may see your good works and glorify your Father in heaven.
When Christ spoke these words it was not just to tell the disciples that they had to behave themselves as Christians should do because He knew inside their hearts already. None of us are perfect!
He chose “light” because light makes the biggest difference in a dark place. When we get up on a dark morning we switch the light on so that we can see what is going on; without that light we are pretty much lost.
God wants us to be like lights going out into the dark community bringing hope, peace and direction to all around us. Without that light our communities would be very dark places.