"The form of Jesus Christ takes form in man. Man does not take on an independent form of his own, but what gives him form and what maintains him in the new form is always solely the form of Jesus Christ Himself. It is therefore not a vain imitation or repetition of Christ’s form but Christ’s form itself which takes form in man... So the Church is not a religious community of worshippers of Christ but is Christ Himself, who has taken form among men..."
"What matters in the Church is not religion but the form of Christ, and its taking form amidst a band of men. If we allow ourselves to lose sight of this, even for an instant, we inevitably relapse into that program-planning for the ethical or religious shaping of the world, which was where we set out from."
Dietrich Bonhoeffer, Ethics