"Those who wish even to focus on the problem of a Christian ethic are faced with an outragious demand - from the outset they must give up, as inappropriate to this topic, the very two questions that led them to deal with the ethical poblem: 'How can I be good?' and 'How can I do something good?' Instead they must ask the wholly other, completely different question: 'What is the will of God?"
"It is not your love that sustains the marriage, but from now on, the marriage that sustains your love."
"Only the Believer is obedient, and only he who obeys believes."