In a Believer’s life I think there isn’t anything potentially more volatile than secret sins. Hidden sins will lead us to compromise and dilute the truth in our own mind…rationalizing things until we can live with ourselves. They cause us to hide things out of shameful awareness and dispair…which spirals us down the slippery slope into depression. Secret sins need to be dealt with…not left to simmer and develop into more. Besides, you’re only fooling yourself if you think that hidden sins are really hidden.