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What Is the Lutheran Confession? A Guide to the Book of Concord

Rev. C•D•F• Warrington, M.Div.
By Rev. C•D•F• Warrington, M.Div.

Ordained Minister, M.Div.

March 21, 2026

3 min read

lutheran
The Book of Concord open to the Lutheran Confession documents

When Lutherans talk about "the confessions," they mean a specific collection of documents compiled in 1580 called the Book of Concord. These writings — produced between 1529 and 1577 — define what Lutherans believe, teach, and confess about the Christian faith. Understanding the Book of Concord is essential for understanding Lutheranism.

What Is the Book of Concord?

The Book of Concord is a collection of eleven documents adopted on June 25, 1580 — the 50th anniversary of the Augsburg Confession — by Lutheran princes, nobles, and theologians. It was compiled to end decades of internal theological disputes among Lutherans following Martin Luther's death in 1546. The Book of Concord represents the Lutheran answer to the question: "What do we actually believe?"

The Documents of the Book of Concord

The Book of Concord contains three ecumenical creeds (Apostles', Nicene, and Athanasian) — documents Lutherans share with the whole church. It then includes specifically Lutheran documents: Luther's Small Catechism (1529) and Large Catechism (1529), written to teach the basics of Christian faith. The Augsburg Confession (1530), written by Philip Melanchthon, was the first formal Lutheran statement of doctrine, presented to Holy Roman Emperor Charles V. Its companion, the Apology of the Augsburg Confession, defended it against Roman Catholic objections.

Later documents include the Smalcald Articles (1537), written by Luther himself as a sharp statement of what could and could not be conceded to Rome. The Treatise on the Power and Primacy of the Pope (by Melanchthon) and the Formula of Concord (1577) round out the collection, with the Formula resolving internal disputes on issues like free will, grace, the Lord's Supper, and Christ's presence.

Why the Confessions Matter

Lutheran pastors and teachers are ordained to preach and teach "in accordance with" the confessions. This means the Book of Concord serves as the doctrinal standard by which Lutheran preaching, teaching, and practice are measured — subordinate to Scripture, but authoritative as a faithful summary of what Scripture teaches. A church that ignores or contradicts the confessions has, by definition, departed from Lutheran identity.

Quia vs. Quatenus Subscription

Lutheran churches subscribe to the Book of Concord in one of two ways. "Quia" (Latin: "because") subscription means affirming the confessions because they faithfully teach what Scripture teaches. "Quatenus" ("insofar as") subscription only commits to them where they happen to agree with Scripture, leaving open the possibility of disagreement. Confessional Lutheran bodies — the LCMS, WELS, and ELS — require quia subscription from their clergy.

The Catechisms: Where Most Lutherans Start

For most Lutherans, the Small Catechism is the entry point to confessional Lutheran theology. Luther designed it in 1529 as a household teaching tool — short, clear, and organized around the Ten Commandments, the Creed, the Lord's Prayer, Baptism, Confession, and the Sacrament of the Altar. It has been used to prepare Lutheran youth for confirmation for nearly 500 years and remains the most widely used summary of Lutheran doctrine in the world.

The Lutheran Confession is not a relic of the sixteenth century. It is a living doctrinal heritage that shapes Lutheran worship, preaching, catechesis, and care of souls today. Understanding it is the first step toward understanding what makes Lutheranism distinctly Lutheran.

Tags:lutherantheologybeginner

Frequently Asked Questions

What is the Book of Concord and what documents does it contain?

The Book of Concord, published in 1580 to mark the fiftieth anniversary of the Augsburg Confession, is the comprehensive collection of Lutheran confessional documents that defines orthodox Lutheranism. It contains the three ancient creeds (Apostles', Nicene, and Athanasian), Luther's two catechisms (Large and Small, 1529), the Augsburg Confession (1530), its Apology (1531), the Smalcald Articles (1537), the Treatise on the Power and Primacy of the Pope (1537), and the Formula of Concord (1577). Together these ten documents provide a complete statement of Lutheran doctrine as distinguished from both Roman Catholicism and Reformed Protestantism.

How is the Lutheran confession different from Calvinist or Reformed confessions?

The most significant differences between Lutheran and Reformed confessions concern the Lord's Supper, the law-gospel distinction, and predestination. Lutherans confess Christ's true body and blood are present in the Supper (real presence), while Reformed confessions like the Belgic Confession and Heidelberg Catechism teach a spiritual presence received by faith. Lutherans affirm a universal atonement and resist the double predestination of Calvinism, and Lutheran theology gives distinctive emphasis to the law-gospel distinction as the hermeneutical key to Scripture. These differences are formalized in the Formula of Concord (1577), which explicitly rejects several Reformed positions.

What Lutheran denominations today subscribe to the Book of Concord?

The Lutheran Church–Missouri Synod (LCMS), the Wisconsin Evangelical Lutheran Synod (WELS), and the Evangelical Lutheran Synod (ELS) are among the American Lutheran bodies that require strict subscription to all the documents of the Book of Concord as the correct exposition of Holy Scripture. The Evangelical Lutheran Church in America (ELCA), the largest Lutheran body in the United States, affirms the Book of Concord as its confessional standard but allows more flexibility in interpretation. Globally, the International Lutheran Council (ILC) represents denominations that hold a high view of confessional subscription, while the Lutheran World Federation (LWF) takes a broader approach.

What is the Small Catechism and why is it important for Lutherans?

Martin Luther's Small Catechism (1529) is a brief instructional text covering the Ten Commandments, the Apostles' Creed, the Lord's Prayer, baptism, confession, and the Lord's Supper, designed to teach children and household members the essentials of Christian faith. Luther wrote it in response to his discovery during church visitations that ordinary German Christians were profoundly ignorant of basic doctrine. It remains the most widely used catechetical tool in Lutheran congregations worldwide and is typically the text used to prepare young people for confirmation, making it one of the most influential Christian educational documents ever produced.

What is the Formula of Concord and why was it necessary?

The Formula of Concord (1577) was written to resolve a series of bitter theological controversies that erupted within Lutheranism after Luther's death in 1546, particularly disputes over free will, the Lord's Supper, justification, and the third use of the law. It consists of an Epitome and a Solid Declaration, authored primarily by Jakob Andreä and Martin Chemnitz, and was signed by over 8,000 pastors and theologians across German Lutheran territories. The Formula successfully unified most German Lutheran churches and drew clear boundaries against both Calvinist and crypto-Calvinist influences that had infiltrated some Lutheran territories.

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