The pious fellowship permits no one to be a sinner. So everybody must conceal his sin from himself and from the fellowship. We dare not be sinners. Many Christians are unthinkably horrified when a real sinner is discovered among the righteous. So we remain alone with our sin, living in lies and hypocrisy. The fact is that we are all sinners!
D. Bonhoeffer, Life Together, (San Francisco: Harper & Roe, 1954), 112, as quoted by Edward T. Welch in Addictions: A Banquet in the Grave, (Phillipsburg, NJ: P & R Publishing, 2001), 94.