Study & Discussion Guide
The Cost of Discipleship
13 weeks · 96 discussion questions
About This Study Guide
Dietrich Bonhoeffer wrote The Cost of Discipleship in 1937 — from the context of a Germany sliding into totalitarianism and a church being seduced by compromise — and its central argument has lost none of its urgency. The book's thesis is announced in its very first line: "Cheap grace is the deadly enemy of our Church." Against the comfortable Christianity that demands nothing, Bonhoeffer sets the call of Jesus Christ, which demands everything. True discipleship, he argues, is not a religious program layered on top of ordinary life; it is a new kind of existence, born in obedience to a living Person. The book moves in two major movements: a theological examination of grace and call (Part One), followed by a sustained, verse-by-verse meditation on the Sermon on the Mount and the missionary discourse of Matthew 10 (Part Two). Together, they form one of the most searching challenges to comfortable Christianity ever written.
This study guide is designed for use over thirteen weeks — either in a small group or in personal devotional study. The pattern for each week is simple: read the assigned chapter or section before you meet, spend some time journaling your honest reactions, and then work through the discussion questions together (or alone, in writing). There are no right answers to memorize; the goal is to let Bonhoeffer's relentless questions reach into your actual life. Some weeks will be uncomfortable — that is the point. Bonhoeffer is not trying to give you information about discipleship; he is trying to summon you into it.
By the end of this guide, you will have been confronted — perhaps for the first time — with the full weight of what Jesus asks of those who follow him. You will likely find that some of your assumptions about grace, obedience, the church, and the Christian life need to be rethought. More importantly, you will have spent thirteen weeks in close company with one of the most faithful witnesses of the twentieth century, a man who ultimately paid for his convictions with his life. His words carry the authority of someone who meant every one of them.
13-Week Schedule
- Week 1Introduction — Costly Grace vs. Cheap Grace8 questions
- Week 2The Call to Discipleship7 questions
- Week 3Single-Minded Obedience7 questions
- Week 4Discipleship and the Cross7 questions
- Week 5Discipleship and the Individual / The Beatitudes8 questions
- Week 6Salt, Light, and the Righteousness of Christ7 questions
- Week 7The Antitheses — A Deeper Righteousness7 questions
- Week 8The Hidden Righteousness — Piety in Secret8 questions
- Week 9The Disciple and the World — Anxiety, Judgment, and the Narrow Gate7 questions
- Week 10The Messengers — The Mission Discourse7 questions
- Week 11The Church and the World — The Body of Christ7 questions
- Week 12The Image of Christ — Conformation and Cruciformity8 questions
- Week 13Review & Reflection — The Cost We Have Counted8 questions
Week 1: Introduction — Costly Grace vs. Cheap Grace
All 8 questions→Read the Preface and Chapter 1 of The Cost of Discipleship ("Costly Grace"). Key passages: Matthew 13:44-46; Luke 14:25-33.
1.Bonhoeffer's opening salvo is: "Cheap grace is the deadly enemy of our Church." Before engaging his argument, what does that phrase stir up in you? Does it sound liberating, alarming, or unfair?
2.Bonhoeffer defines cheap grace as "the preaching of forgiveness without requiring repentance, baptism without church discipline, communion without confession, absolution without personal confession." In your own words, what makes grace "cheap" in his framework — and why does he call it deadly rather than merely inadequate?
Week 2: The Call to Discipleship
All 7 questions→Read Chapter 2 of The Cost of Discipleship ("The Call to Discipleship"). Key passages: Mark 2:14; Matthew 9:9; Matthew 4:18-22.
1.Bonhoeffer draws attention to the sheer immediacy of the disciples' response in the Gospels: they left their nets and their tax booth "at once," without theological deliberation. Why does he think this immediacy is theologically significant, rather than merely dramatic?
2.He argues that the call of Jesus creates an "either/or" — there is no middle ground between following and not following. How does this challenge the way discipleship is often presented today as a gradual process of spiritual growth that doesn't require decisive breaks?
Week 3: Single-Minded Obedience
All 7 questions→Read Chapter 3 of The Cost of Discipleship ("Single-Minded Obedience"). Key passages: Matthew 5:29-30; Luke 9:57-62.
1.Bonhoeffer describes what he calls "the great divide" between those who hear Jesus' words and do them, and those who hear and do not. He says this divide is not between serious and casual Christians but between disciples and non-disciples. Does that strike you as too sharp a distinction, or does it ring true?
2.He argues that the moment we begin to ask "How far does the command go?" or "What is the minimum required?" we have already stepped off the path of discipleship. Why does asking about limits reveal a divided heart rather than theological precision?
Week 4: Discipleship and the Cross
All 7 questions→Read Chapter 4 of The Cost of Discipleship ("Discipleship and the Cross"). Key passages: Matthew 10:38; Mark 8:31-38; Luke 14:27.
1.Bonhoeffer writes that "to endure the cross is not a tragedy; it is the suffering which is the fruit of an exclusive allegiance to Jesus Christ." What distinction is he drawing between the crosses Christians are called to bear and the ordinary suffering that comes to everyone in a fallen world?
2.He argues that the cross is not chosen by the disciple — it is laid upon us by our allegiance to Jesus in a world that rejected him. How does this change the way we might think about difficulties in our own lives? Which hardships in your life might be crosses, and which are simply troubles?
Week 5: Discipleship and the Individual / The Beatitudes
All 8 questions→Read Chapters 5-6 of The Cost of Discipleship ("Discipleship and the Individual" and "The Beatitudes"). Key passages: Matthew 5:1-12.
1.Bonhoeffer argues that discipleship creates a new kind of individual — one who has been separated from all previous attachments and securities and placed in direct relationship with Christ. He calls this a "mediation" — Christ stands between the disciple and everything else. How does this image reshape how you think about your closest relationships?
2.He describes the community of the Beatitudes as "a community of those who are utterly lost" — the poor in spirit, the mourners, the meek. Why does Jesus begin his manifesto for the kingdom with this catalogue of apparent weaknesses rather than virtues?
Week 6: Salt, Light, and the Righteousness of Christ
All 7 questions→Read Chapters 7-9 of The Cost of Discipleship ("The Salt of the Earth," "The Visible Community," and "The Righteousness of Christ"). Key passages: Matthew 5:13-20.
1.Bonhoeffer argues that the community of disciples is called to be the salt of the earth — but that salt which has lost its flavor is good for nothing. He connects the loss of flavor directly to the loss of costly grace. How does a church that has embraced cheap grace lose its saltiness? Can you give a concrete example?
2.He insists that the disciples' good works must be visible — "a city on a hill cannot be hidden" — not so that the disciples receive praise, but so that the Father is glorified. What is the difference between visibility that glorifies God and visibility that glorifies us? How do you tell which is which in your own life?
Week 7: The Antitheses — A Deeper Righteousness
All 7 questions→Read Chapters 10-14 of The Cost of Discipleship (covering the antitheses: anger, lust, divorce, oaths, revenge, enemies). Key passages: Matthew 5:21-48.
1.Bonhoeffer reads the antitheses not as Jesus tightening the law into an impossible demand but as Jesus revealing the full human depth the law always intended to reach — anger is the heart of murder, lust is the heart of adultery. How does this reframe the purpose of the law? Is Jesus liberating or convicting you as you read this?
2.On anger: Bonhoeffer says that anger, even when "righteous," sets us up as judge over our brother — and that Jesus cuts off this self-appointment. He connects this to the command to be reconciled before bringing your gift to the altar. Is there a relationship in your life where you are carrying anger that makes worship hollow?
Week 8: The Hidden Righteousness — Piety in Secret
All 8 questions→Read Chapters 15-18 of The Cost of Discipleship (on almsgiving, prayer, fasting, and treasures). Key passages: Matthew 6:1-21.
1.Bonhoeffer argues that "righteous" acts done to be seen by others — almsgiving, prayer, fasting — are not discipleship but its imitation, and he calls this the "most dangerous" form of religious corruption. Why is religious performance more dangerous than open irreligion?
2.He says that the left hand must not know what the right hand is doing — the disciple's good deeds must become so genuinely selfless that the disciple himself scarcely notices them. What is the spiritual discipline this requires? Can you honestly say your acts of generosity are hidden in this way?
Week 9: The Disciple and the World — Anxiety, Judgment, and the Narrow Gate
All 7 questions→Read Chapters 19-22 of The Cost of Discipleship (on anxiety, judging others, the disciple and unbelievers, and the conclusion of the Sermon). Key passages: Matthew 6:19–7:29.
1.Bonhoeffer writes that anxiety is the natural result of trying to secure your own life — it is what happens when your eye is not "single" but divided between God and possessions. He says the antidote is not positive thinking but a reorientation of the whole self toward God. How does this connect to what he said earlier about single-minded obedience?
2."Consider the lilies" — Bonhoeffer takes seriously Jesus' appeal to the natural world as a theological argument: the birds and flowers are cared for by God without securing themselves. He says disciples are invited into this same creaturely trust. Does this feel naïve to you, or does it penetrate something real about your anxiety?
Week 10: The Messengers — The Mission Discourse
All 7 questions→Read Chapters 23-26 of The Cost of Discipleship (on the harvest, the apostles, the work and suffering of the messengers). Key passages: Matthew 9:35–10:42.
1.Bonhoeffer opens this section with Jesus' compassion for the crowds "harassed and helpless, like sheep without a shepherd." He insists that this compassion is the motive for mission — not strategy, not church growth, but the suffering of people who have no shepherd. Does compassion or strategy more often drive your involvement in outreach?
2.He notes that Jesus tells his disciples to "pray the Lord of the harvest to send out workers" — and then immediately sends them. Prayer and mission are inseparable in the text. How does your experience of prayer connect to (or disconnect from) your engagement in mission?
Week 11: The Church and the World — The Body of Christ
All 7 questions→Read Chapters 27-30 of The Cost of Discipleship (on the community of Jesus, the image of Christ, the visible church, and the saints). Key passages: Romans 12; 1 Corinthians 12; Ephesians 4.
1.Bonhoeffer argues that the church is the body of Christ — not metaphorically or institutionally, but ontologically. Christ takes form in the world through this community. What does it mean for your understanding of church attendance, church membership, and church conflict if this is true?
2.He writes about the process of being "conformed to the image of Christ" — not through moral effort but through the Spirit's work in and through the church community. How does Christian community, rather than private spirituality, become the primary arena of transformation?
Week 12: The Image of Christ — Conformation and Cruciformity
All 8 questions→Read the concluding chapters of The Cost of Discipleship (on the image of Christ and the conclusion). Key passages: Romans 8:29; 2 Corinthians 3:18; Philippians 3:10-11.
1.Bonhoeffer argues that human beings were created in the image of God and that this image was shattered in the fall. The entire work of salvation — and of discipleship — is its restoration. How does framing discipleship as image-restoration change its emotional register? Does it feel more like recovery or more like achievement?
2.He argues that Christ is not only the model we imitate but the one into whose image we are being transformed by the Spirit. This is different from moral effort — it is a participation in Christ's own death and resurrection. How do you experience this transformation? Is it happening in your life — slowly, resistantly, unevenly?
Week 13: Review & Reflection — The Cost We Have Counted
All 8 questions→No new reading this week. Review your notes, journals, and underlinings from the entire book.
1.When you began this book, how would you have defined discipleship? How would you define it now? What is the most significant change in your understanding?
2.Bonhoeffer's central distinction is between cheap grace and costly grace. Which side of that line do you think your Christian life has been living on — honestly? Has reading the book moved you at all, or has it only confirmed what you already believed?
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