Costly Grace

At a glance

Summary

Bonhoeffer opens Part I with the sentence that has followed the book ever since: cheap grace is the deadly enemy of the church, and the church of his day is fighting, whether it knows it or not, for costly grace. Cheap grace, as he defines it, is grace turned into a general doctrine about God's love, dispensed like inventory from the church's inexhaustible treasury — forgiveness without repentance, baptism without discipline, communion without confession, absolution without any real intention to leave sin behind. Because the account has supposedly already been settled by the cross, the individual believer is asked to do nothing further; grace becomes the insurance policy under which the old life continues unchanged.

Costly grace is the same gospel seen the other way round. It is costly because it calls a person to follow, and grace because it is Christ himself who calls; it is the pearl of great price for which a man sells all that he has, the kingly rule of Christ for whose sake an eye that offends is plucked out. Because it cost God the life of his Son, it cannot be treated as cheap by those who receive it — not because their obedience earns it, but because grace that changes nothing in the believer's life was never the grace of the New Testament at all.

To show how the church drifted from one to the other, Bonhoeffer traces the story through monasticism and the Reformation. Monastic life, he argues, began as a living protest against a secularized, cut-price Christianity — a place where the full seriousness of following Christ was still taken literally. But the church tamed the protest by treating it as an extra credit available to a spiritual elite, which let everyone else settle for a lower, easier standard. Luther's rediscovery of grace alone was meant to abolish that two-tier system by placing every Christian, not just the monk, under the total claim of Christ; his own return from the cloister to ordinary work in the world was itself a costly act of obedience, not a relaxation of it.

The tragedy, in Bonhoeffer's reading, is that Luther's followers kept the doctrine and dropped the discipleship it was meant to protect. ‘Grace alone’ became a formula that justified sin instead of the sinner who left it behind, and the Reformation's hard-won insight decayed into exactly the cheap grace it was meant to destroy. Bonhoeffer closes the chapter by insisting this is not a call to earn grace through good works — that would just be another form of cheapening it — but a call to recognise that the grace which costs nothing to dispense was never free in the first place; it was bought at the price of the cross, and it can only be received by a life that follows.

Key points

• Cheap grace is grace as doctrine and general truth: forgiveness, baptism and absolution offered without repentance, discipleship, the cross, or Christ himself.
• Costly grace is the same gospel received as a call: it costs a person their old life, and it is grace because it is God who pays for it in his Son.
• Medieval monasticism began as a serious protest against cheap grace, but the church defused that protest by treating rigorous discipleship as optional, for specialists only.
• Luther's rediscovery of grace alone was meant to put every Christian, not a spiritual elite, under Christ's full claim — his own return to the world was itself costly obedience.
• Bonhoeffer argues Luther's heirs kept the formula ‘grace alone’ but quietly dropped the discipleship it presupposed, turning a hard-won doctrine back into cheap grace.

Related Scripture

• Matthew 13:44–46
• Matthew 5:29–30
• Romans 6:1–2
• Ephesians 2:8–9

For reflection and discussion

1. Where do you see the pattern of ‘forgiveness without repentance’ in ordinary church life today — including, honestly, in your own?
2. Bonhoeffer says costly grace and cheap grace can use the very same words (‘grace alone,’ ‘justification by faith’). What distinguishes them isn't the vocabulary but the life around it — what would that life need to look like in your case?
3. Is there a decision or relationship in your life right now where you have quietly assumed grace covers the outcome without your needing to follow through in obedience?