'We deceive ourselves when we think sin is individual and independent of a community's honor. Our individualism feeds the false sense that sin is merely an inner wrong - the private business between and God to be worked out on judgement day. Paul thought otherwise. He considered sin yeast that influences the whole batch of dough (1 Cor 5:6).'
E Randolph Richards and Brandon J O'Brien, Misreading Scripture with Western Eyes: Removing Cultural Blinders to Better Understanding the Bible, p.132.