Whether you are perceived by others, or even see yourself, as a good or a bad person does not alter the fact that you are, at the very least potentially, both good and bad. People have the capacity for both good and evil. Given the right set of circumstances, anyone is capable of producing uncharacteristically bad deeds or unusually good deeds.To dispute this is to deceive yourself.
Light is a metaphor for goodness and dark is a metaphor for evil. Light represents not just goodness, but truth. Here is truth: God is light and in Him there is no darkness at all. Here is another truth: If you claim to be without sin, you are a liar.
For those who are offended by God and the positive influence of his followers, here is a question: What would the world be like without any light? What would the world be like if there was no truth? Would you like to live in a world where evil reigns? What is it that restrains evil?
God is light. If you turn off the light, you invite death.