Darkness is dangerous. Anything in your life that you are trying to keep a secret, hidden in the dark, is holding you back and will harm you eventually. Think about it. Nothing healthy grows in the dark. Flowers, trees, fruits, and vegetables–the kind of things that you want to grow–they all require sunshine. Mold spores, fungi, moss, these are the kinds of things that thrive in dark environments. The kind of growth you don’t want is what you will find in secret, shady places.
John 3:19 And the judgment is based on this fact: God’s light came into the world, but people loved the darkness more than the light, for their actions were evil.
If there is any part of your day, any activity, habits, media you consume, websites you visit, or relationships you foster that you wouldn’t want your wife, your kids or your parents to know about; it’s a fungus. It might be small and containable now, but it won’t stay that way, it will eventually spread and grow more and more toxic until it poisons you and harms people you love. Plus you need to remember these two things: 1. it’s not going to stay a secret forever–your sin will find you out. and 2. It’s not a secret now. God knows. He sees what happens in every shady place.
The only thing to do is to kill it with bleach and expose it to the light of day. Forgiveness comes from confessing our sins to God, healing comes from confessing our sins to other believers who will hold us accountable. And from now on, no more secrets. Walk in the light, that’s where the fruit is.
Romans 13:12 The night is far spent, the day is at hand. Therefore let us cast off the works of darkness, and let us put on the armor of light.