A Christian fellowship lives and exists by the intercession of its members for one another, or it collapses.

....The individual must realize that his hours of aloneness react upon the community. In his solitude he can sunder and besmirch the fellowship, or he can strengthen and hallow it. Every act of self-controll of the Christian is also a service to the fellowship. On the other hand, there is no sin in thought, word, or deed, no matter how personal or secret, that does not inflict injury upon the whole fellowship.

Dietrich Bonhoeffer. LIFE TOGETHER.