All of these quotes come from Mark Thiessen Nation and Stanley Hauerwas’s piece “‘A pacifist and enemy of the state’: Bonhoeffer’s journey to nonviolence.” It offers a nuanced interpretation of Bonhoeffer’s nonviolence.
The Sermon on the Mount as the proclamation of the incarnate love of God calls people to love one another, and thus to reject everything that hinders fulfilling this task – in short, it calls them to self-denial. In renouncing one’s own happiness, one’s own rights, one’s own righteousness, one’s own dignity, in renouncing violence and success, in renouncing one’s own life, a person is prepared to love the neighbour. Source
…we too are being thrown back all the way to the beginnings of our understanding. What reconciliation and redemption mean, rebirth and Holy Spirit, love for one’s enemies, cross and resurrection, what it means to live in Christ and follow Christ; all that is so difficult and remote that we hardly dare speak of it anymore. In these words and actions handed down to us, we sense something totally new and revolutionary, but we cannot yet grasp it and express it. This is our own fault. Our church has been fighting during these years only for its self-preservation, as if that were an end in itself. It has become incapable of bringing the word of reconciliation and redemption to humankind and to the world … [The Church needs] conversion and purification. It is not for us to predict the day – but the day will come – when people will once more be called to speak the word of God in such a way that the world is changed and renewed. It will be in a new language, perhaps quite nonreligious language, but liberating and redeeming like Jesus’ language, so that people will be alarmed and yet overcome by its power – the language of a new righteousness and truth, a language proclaiming that God makes peace with humankind and that God’s kingdom is drawing near. SOURCE