"Membership in the family of God is neither inconsequential or something to be casually ignored. The church is God's agenda for the world. Jesus said, "I will build my church, and all the powers of hell will not conquer it." The church is indestructable and will exist for eternity. It will outlive this universe, and so will your role in it."
- Rick Warren
Thursday, June 24, 2010
‘The conscience is not serene or troubled according to what we have done or not done. Peace of conscience depends solely upon what we are, i.e., on whether we believe – and the extent to which we believe – in the boundless unconditioned mercy of God … It is theologically wrong to try to pacify a conscience-stricken person by talking away his sins. To do so is to try to cure him by means of the “outer tent.” But there is no healing here, and cannot be. In fact the heart of his problem is that he is still loitering in this forecourt. The only way we can help is to point him to the εφαπαξ that which took place once-and-for-all for him in the crucifixion of Jesus Christ’. – Helmut Thielicke, Theological Ethics Volume 1: Foundations (Grand Rapids: Wm. B. Eerdmans, 1979), 310.
There's nothing more to say except, "Amen."

Hmm.
I'm not sure that I agree with Thielicke here.
I think that when the self is serene, the conscience is untroubled.
Perhaps he's distinguishing between the psychology of conscience and the theology of conscience... his typology suggests so.
But if so, that quotation points to the fact that Christianity depends for its existence on perpetuating shame and guilt in order that it might be the only thing that can cure it.