Let your light so shine before men, that they may see your good works and glorify your Father in heaven. Matthew 5:16
Most of you have seen the flashing lights of a police car a long distance away. They must be very bright if they are to be seen for any distance. How large a bulb does the average light use? Upon investigation, you will find that a very small bulb is used, but it is seen far away because it has an excellent reflector.
What was Jesus really referring to when He told you to let your lights shine? He was talking about your reflecting the nature and the glory of the Lord. The more you keep the “reflector” clean, the brighter the light will be. John 15:3 shows you are cleansed by the Word. Contamination from the world may come through thoughts or words, but you can be cleansed as you spend time studying the Scriptures. Allow His reflection to become brighter each day.