Dietrich Bonhoeffer's Theology Revision Notes
Subject: Religious Studies | Level: A-Level | Exam Board: WJEC
Dietrich Bonhoeffer (1906–1945) was a German Lutheran pastor whose theology was forged in direct confrontation with Nazism, making him one of the most important theological voices of the 20th century. His distinction between 'Cheap Grace' and 'Costly Grace' remains a foundational challenge to the institutional Church, while his concepts of 'Religionless Christianity' and the 'World Come of Age' anticipate the secularisation debates that dominate contemporary religious thought. For WJEC candidates, Bonhoeffer offers a uniquely rich intersection of historical context, ethical dilemma, and systematic theology — mastering his ideas is essential for top-band AO1 and AO2 performance.
Revision Notes & Key Concepts
Revision Podcast Transcript
Hello and welcome to the A-Level Religious Studies revision podcast. I'm your host, and today we're diving into the life and thought of one of the 20th century's most compelling theologians: Dietrich Bonhoeffer. Why does a German pastor, executed by the Nazis just days before the end of World War Two, matter so much for your exam? Because Bonhoeffer's theology is a radical, challenging response to crisis. He forces us to ask: what is the role of the Church in a secular world? And what is the true cost of faith? In the next ten minutes, we'll explore his core concepts, break down exactly what examiners are looking for, and finish with a quick-fire quiz to make sure those key facts are locked in. Let's begin. To understand Bonhoeffer, you have to understand his context. He lived through the rise of Nazism in Germany. The state was attempting to control every aspect of life, including the church, through the so-called 'German Christian' movement. Bonhoeffer resisted this from the start. In 1934, he was a key figure behind the Barmen Declaration, a foundational document of the Confessing Church. This was a group of pastors who declared that their ultimate allegiance was to Jesus Christ, not Adolf Hitler. This act of defiance is crucial for understanding his later actions. This leads us to the absolute core of his theology: the distinction between 'Cheap Grace' and 'Costly Grace'. In his seminal 1937 book, The Cost of Discipleship, Bonhoeffer argues that the Church had made grace too easy, too comfortable. 'Cheap Grace', he said, is the deadly enemy of the Church. It's grace as a doctrine, a system, a principle. It's forgiveness without repentance. It's communion without confession. It's grace without discipleship, grace without the cross. In stark contrast, 'Costly Grace' is the treasure hidden in the field. It's costly because it calls us to follow Jesus. It's costly because it costs a person their life, and it is grace because it gives them the only true life. Cheap grace is a transaction; costly grace is a transformation. Bonhoeffer didn't just write about this; he lived it. From 1935 to 1937, he ran an illegal, underground seminary for the Confessing Church at Finkenwalde. This wasn't just a school; it was a community attempting to live out 'costly grace' together. They practiced what Bonhoeffer called 'Life Together' — a shared life of prayer, study, and service. For the exam, analyse Finkenwalde not just as a historical event, but as a practical theological experiment in building a Christian community in opposition to the Nazi state. Later, from his prison cell, Bonhoeffer developed his most radical ideas: 'Religionless Christianity' and the 'World Come of Age'. He argued that humanity had 'come of age' — we had developed science, politics, and ethics to a point where we no longer needed God as a gap-filler. In this secular world, the old 'religious' trappings of the church no longer worked. The Church, he argued, must stop being 'religious' and instead exist simply 'for others'. For AO1, be precise. When you define cheap and costly grace, explicitly quote or reference The Cost of Discipleship. For AO2 evaluation, you must engage with the tension between Bonhoeffer's early pacifism and his later involvement in the plot to assassinate Hitler. Contrast his situational ethics with a more absolutist position to show critical thinking. The biggest common mistake is conflating 'Religionless Christianity' with atheism. This is a guaranteed way to lose marks. Bonhoeffer is not saying God doesn't exist; he is calling for a new, more authentic way of being Christian in a secular world. Quick-fire quiz: One — In what year was the Barmen Declaration? 1934. Two — What is the key difference between costly and cheap grace? Discipleship. Three — What was the name of Bonhoeffer's illegal seminary? Finkenwalde. Four — What concept describes humanity outgrowing traditional religious frameworks? The World Come of Age. To summarise: frame Bonhoeffer's entire theology around costly grace versus cheap grace. This drives his actions from Barmen to Flossenbürg. His call for religionless Christianity is not a rejection of faith, but a radical call for the Church to exist for others. Thanks for listening, and best of luck with your exams.
Key Terms & Definitions
- Cheap Grace
- Grace understood as a doctrine, principle, or system dispensed by the Church without any corresponding demand for discipleship, repentance, or personal transformation. In Bonhoeffer's words, 'grace without the cross, grace without Jesus Christ, living and incarnate.'
- Costly Grace
- Grace that simultaneously calls the believer to discipleship and gives them the strength to follow. It is costly because it demands the whole life of the believer; it is grace because this demand is itself a gift — the only life worth living.
- Religionless Christianity
- Bonhoeffer's concept, developed in his prison letters, of a form of Christian faith that does not rely on 'religious' frameworks — metaphysical language, appeals to human weakness, or God as a 'deus ex machina' — but instead engages the secular world at its centre and exists entirely 'for others'.
- The World Come of Age (Mündige Welt)
- Bonhoeffer's diagnosis of modernity: humanity has intellectually and morally 'come of age' (*Mündigkeit* = maturity/majority) and can solve its own problems without recourse to God as a working hypothesis. This is not a cause for despair but a challenge to the Church to find a new voice.
- The Confessing Church (Bekennende Kirche)
- The movement of German Protestant pastors and theologians who, from 1934, refused to submit to Nazi state control of the Church and declared their sole allegiance to Jesus Christ as Lord. Founded through the Barmen Declaration.
- The Barmen Declaration (1934)
- A theological declaration issued by the first Confessing Synod of the German Evangelical Church in May 1934, drafted primarily by Karl Barth. It asserted that Jesus Christ alone is Lord of the Church and rejected the Nazi state's claim to be a source of divine revelation.
- Life Together (Gemeinsames Leben)
- Bonhoeffer's 1939 account of the Finkenwalde community's practice of shared Christian life, including structured prayer, confession, meditation, and mutual service. It represents his practical theology of the Church as community.
- Tyrannicide
- The killing of a tyrant, understood in political philosophy as a potentially justified act of resistance to illegitimate authority. Bonhoeffer's involvement in the plot to assassinate Hitler raises the question of whether his theology can justify tyrannicide.
Worked Examples
Worked Example
Question: Explain Bonhoeffer's distinction between 'Cheap Grace' and 'Costly Grace'. (AO1, 20 marks)
Solution: **Introduction**: Bonhoeffer's distinction between 'Cheap Grace' and 'Costly Grace', articulated most fully in the opening chapter of *The Cost of Discipleship* (1937), represents the theological core of his entire project. It is a critique directed not at atheism but at the institutional Protestant Church itself. **Paragraph 1 — Defining Cheap Grace**: Bonhoeffer defines 'Cheap Grace' as 'the deadly enemy of our Church'. It is grace understood as a doctrine, a principle, or a system — grace that is dispensed by the Church without any corresponding demand on the recipient. He writes of 'grace without the cross, grace without Jesus Christ, living and incarnate.' The key characteristic is the absence of discipleship: cheap grace offers forgiveness without repentance, communion without confession, and absolution without personal transformation. Bonhoeffer's critique is that the Lutheran tradition, in its correct emphasis on justification by faith alone, had drifted into treating grace as a theological given that required nothing of the believer. The Church had, in effect, put grace 'on sale at cut price' — available to all, costing nothing. **Paragraph 2 — Defining Costly Grace**: In contrast, 'Costly Grace' is described by Bonhoeffer as 'the treasure hidden in the field; for the sake of it a man will gladly go and sell all that he has.' It is costly because it calls the believer to follow Jesus Christ — to take up the cross, to suffer, and to act in the world. It is simultaneously grace because this call is not a burden but a gift: it is the only life worth living. Crucially, costly grace is not earned; it remains grace in the theological sense. But it is grace that transforms rather than merely pardons. The difference, for Bonhoeffer, is between a transaction (cheap grace) and a transformation (costly grace). **Paragraph 3 — Historical and Ecclesiological Context**: Bonhoeffer's distinction was not abstract; it was forged in the context of the German Church's capitulation to Nazism. The 'German Christian' movement's accommodation of the Aryan Clause represented, for Bonhoeffer, the ultimate expression of cheap grace: a Church that had traded its costly obedience to Christ for the comfort of state approval. His establishment of Finkenwalde Seminary (1935–37) was a practical attempt to embody costly grace through intentional community, shared prayer, and resistance to the state. **Conclusion**: The distinction between cheap and costly grace is not merely a theological nicety but the lens through which Bonhoeffer evaluates every aspect of Christian life and Church practice. Examiners should credit candidates who demonstrate that this distinction drives his ecclesiology, his ethics, and ultimately his decision to join the resistance movement.
Worked Example
Question: 'Bonhoeffer's concept of Religionless Christianity is ultimately incoherent.' Evaluate this claim. (AO2, 30 marks)
Solution: **Introduction**: The charge of incoherence against Bonhoeffer's concept of 'Religionless Christianity' is a serious one, and it has been levelled by theologians from across the spectrum. However, a careful reading of his prison letters suggests that while the concept is undeniably unfinished, it is not incoherent — it is, rather, a provisional and exploratory response to a genuine theological problem. **Argument for incoherence (AO2 — critical analysis)**: The most compelling case for incoherence comes from the apparent contradiction at the heart of the concept. Bonhoeffer calls for a 'non-religious interpretation of biblical concepts' and a Christianity that does not rely on 'religion' — yet he continues to speak of God, Christ, prayer, and the Church. Critics such as John Macquarrie have argued that Bonhoeffer cannot have it both ways: if Christianity is to be genuinely 'religionless', it must abandon the very vocabulary and practices that constitute it as a distinct tradition. Furthermore, the concept was never systematically developed; the prison letters are explicitly provisional, and Bonhoeffer himself acknowledged he did not know what religionless Christianity would look like in practice. **Argument against incoherence (AO2 — counter-argument)**: However, defenders of Bonhoeffer — notably Eberhard Bethge and Harvey Cox in *The Secular City* (1965) — argue that the charge of incoherence misunderstands his intent. Bonhoeffer is not proposing the abolition of Christianity but its reformation. His target is 'religion' in a specific, technical sense: the use of God as a 'deus ex machina' to fill gaps in human knowledge or to offer comfort at the 'boundaries' of life (death, suffering, guilt). He wants the Church to speak of God at the centre of life, not its edges — to engage the secular world as it is, not as the Church wishes it were. This is a coherent, if demanding, theological programme. It is consistent with his earlier insistence on costly grace: just as cheap grace asks nothing of the believer, 'religious' Christianity asks nothing of the Church in terms of genuine engagement with the world. **Evaluation and Judgement**: The most defensible position is that 'Religionless Christianity' is coherent as a *diagnosis* and as a *direction*, but incoherent as a *programme*. Bonhoeffer correctly identifies the problem — a Church that has retreated into religious language and institutional self-preservation — and correctly points towards the solution — a Church that exists for others. But he does not, and perhaps could not, specify what this looks like in liturgical, doctrinal, or institutional terms. His execution prevented the completion of this project. To call it incoherent is to judge an unfinished work by the standards of a finished one. **Conclusion**: The claim that Bonhoeffer's concept is 'ultimately incoherent' is too strong. It is better described as incomplete. Its coherence lies in its diagnosis and its Christological foundation — the model of Christ as the one who 'existed for others' — even if its practical implications remain underdeveloped.
Worked Example
Question: Assess the significance of the Finkenwalde Seminary for understanding Bonhoeffer's theology. (AO1/AO2, 25 marks)
Solution: **Introduction**: The Finkenwalde Seminary (1935–37) is significant not merely as a biographical episode but as the primary site at which Bonhoeffer attempted to translate his theological convictions into lived practice. To assess its significance is to assess the coherence and integrity of his entire theological project. **AO1 — What Finkenwalde was**: Finkenwalde was an illegal, underground seminary established by Bonhoeffer for the Confessing Church in September 1935, following the Nazi state's takeover of official theological education. Located near Stettin, it trained approximately 25 students per cohort in theology and pastoral ministry. Crucially, Bonhoeffer did not run a conventional seminary. He established a quasi-monastic community — a *Bruderhaus* — in which students lived together under a rule of shared prayer (including meditation and confession), communal meals, and mutual accountability. This experiment was documented in *Life Together* (1939). **AO2 — Theological significance**: Finkenwalde is theologically significant because it represents Bonhoeffer's conviction that 'costly grace' cannot be merely a doctrine — it must be a way of life. By choosing to live in intentional community under threat from the Gestapo, Bonhoeffer and his students were enacting the discipleship he had theorised in *The Cost of Discipleship*. The seminary also embodies his ecclesiology: the Church is not an institution but a community of people who follow Christ together, bearing one another's burdens. This is a direct challenge to the 'invisible' or merely doctrinal Church that he associated with cheap grace. **Counter-argument — Limitations of Finkenwalde's significance**: However, one might argue that Finkenwalde's significance is limited by its failure: it was closed by the Gestapo after just two years, and many of its graduates were subsequently arrested or killed. If Bonhoeffer's theological experiment was so significant, why did it not produce a more lasting institutional legacy? One could argue that Finkenwalde was too dependent on Bonhoeffer's personal charisma and too isolated from the broader Church to serve as a model for ecclesial reform. **Conclusion**: Despite these limitations, Finkenwalde remains the most concrete expression of Bonhoeffer's theology in action. Its significance lies not in its institutional durability but in its demonstration that costly grace is possible — that a community can choose to follow Christ in the face of state oppression. For the exam, candidates should assess Finkenwalde as a theological experiment that succeeded on its own terms, even if it failed on the state's terms.
Practice Questions
Question: Explain the concept of 'Cheap Grace' as used by Bonhoeffer. (AO1, 20 marks)
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Question: 'Bonhoeffer's decision to join the assassination plot against Hitler was a betrayal of his Christian principles.' Evaluate this claim. (AO2, 30 marks)
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Question: Explain the significance of the Finkenwalde Seminary for Bonhoeffer's theology. (AO1, 20 marks)
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Question: 'The concept of the World Come of Age makes Bonhoeffer's theology ultimately secular.' Evaluate this claim. (AO2, 30 marks)
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Question: Explain Bonhoeffer's understanding of the role of the Church in a secular world. (AO1, 20 marks)
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