The Book of Concord Today: Lutheran Confessionalism in the 21st Century

When the Book of Concord was signed on June 25, 1580, approximately 8,000 Lutheran clergy, theologians, and government officials subscribed to it. Today, the Book of Concord is the confessional standard for Lutheran churches on every continent. The confessions written in sixteenth-century German and Latin are still read, debated, and preached in parishes from Wittenberg to Lagos to Seoul. This is a remarkable legacy — and it raises the question: why do these documents still matter?

The Major Confessional Lutheran Bodies

The largest confessional Lutheran denomination in the United States is the Lutheran Church — Missouri Synod (LCMS), with approximately 1.8 million baptized members. The Wisconsin Evangelical Lutheran Synod (WELS) and the Evangelical Lutheran Synod (ELS) are smaller but equally committed to the full Book of Concord. All three require quia subscription from their clergy. Internationally, the International Lutheran Council (ILC) connects confessional Lutheran churches worldwide, including major bodies in Germany, Brazil, Australia, and sub-Saharan Africa.

The ELCA and Broader Lutheranism

The Evangelical Lutheran Church in America (ELCA), the largest Lutheran body in the U.S. with approximately 3 million members, also acknowledges the Book of Concord as part of its doctrinal heritage but with a broader theological interpretation. The ELCA practices quatenus subscription and has moved in directions — on sexuality, the ordination of women, and ecumenical agreements — that confessional Lutheran bodies regard as departures from the confessions. The divide between the ELCA and confessional Lutheran bodies is one of the defining fault lines in American Lutheranism today.

Global Lutheranism

Lutheranism has a significant global presence. The Lutheran World Federation (LWF), a communion of 148 member churches in 99 countries representing approximately 77 million Christians, brings together Lutheran bodies from across the theological spectrum. In Ethiopia, Tanzania, and other African nations, Lutheran churches planted by German and Scandinavian missionaries in the 19th and early 20th centuries have grown to become major indigenous churches. The Ethiopian Evangelical Church Mekane Yesus, for example, has over 10 million members. Lutheranism is not a European relic — it is a genuinely global tradition.

Confessional Renewal

The late 20th and early 21st centuries have seen a notable renewal of interest in the Lutheran confessions, particularly among younger Lutherans who find in the Book of Concord a robust alternative to both progressive revisionism and evangelical subjectivism. The catechumenate is being recovered, the liturgy is being restored, and the distinction of law and Gospel is being re-examined as the key to faithful preaching. Journals, podcasts, and seminaries devoted to confessional Lutheran theology are flourishing.

Why the Confessions Endure

The Book of Concord endures because the questions it answers are not historical curiosities. How can a guilty conscience stand before a holy God? What is the church? What do we do with the body of Christ? How do law and Gospel relate? What is free will? These questions are as alive in 2026 as they were in 1530. The Lutheran confessions answer them not by appealing to church tradition alone or to private spiritual experience, but by returning, again and again, to the plain words of Scripture interpreted by the apostolic faith. That is why they remain a living heritage — not a museum piece, but a working grammar for the preaching of the Gospel.