“For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life. For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him. Whoever believes in him is not condemned, but whoever does not believe is condemned already, because he has not believed in the name of the only Son of God. And this is the judgment: the light has come into the world, and people loved the darkness rather than the light because their works were evil. For everyone who does wicked things hates the light and does not come to the light, lest his works should be exposed. But whoever does what is true comes to the light, so that it may be clearly seen that his works have been carried out in God.”
by: Dale Rood.
What is there about light that is important? Specifically, it allows us to see. Darkness is characterized by hiding things. How many times have you tried walking in a darkened room and bumped into a chair? Spiritually speaking, light is even more important. The result of our sin problem is that people have things they want to remain hidden and therefore like the darkness. But Jesus wanted us to understand it is safe to come into the light. There is no problem exposing those nasty things, because in Him we are free from condemnation.