Leo XIV wants Catholics and Lutherans to recover the “pre-confessional ecumenical potential” of the Augsburg Confession for its five-hundredth anniversary. But Rome answered that Confession in 1530 precisely by distinguishing what was Catholic from what was not. Christian unity cannot be recovered by blurring the distinction which made the Reformation a doctrinal rupture.
There is something almost providential about the timing. On 29 September, Nuntiatoria published “Theses Without a Confession: Augsburg and the Ecumenism of Politics”, reflecting upon Catholic and Lutheran leaders in Augsburg publicly posting new “theses” concerning poverty, welfare and migration while the doctrinal questions which once made that city one of the decisive places in Christian history remained unresolved. Our argument was not that Catholics and Protestants should refuse to cooperate for the common good. It was that social agreement cannot substitute for ecclesial unity, and political consensus cannot do the work of confession.¹ Two days later, on Thursday 1 October, Pope Leo XIV received leaders of the Lutheran World Federation in Rome and turned from Augsburg’s contemporary political symbolism to the document which gave Augsburg its lasting theological significance: the Confessio Augustana.
Looking towards 2030, the five-hundredth anniversary of the Augsburg Confession, Leo suggested that Catholics and Lutherans might “once again succeed in affirming together the pre-confessional ecumenical potential of the Confessio Augustana”. He described the anniversary as capable of becoming “a profound ecumenical experience” giving new energy and joy to the movement towards “full, visible unity”.² That language deserves close attention, not because Catholics should fear historical scholarship or Christian reconciliation, but because the Augsburg Confession is not a neutral relic from a period before anybody knew what was at stake. It is the document in which the developing Lutheran movement presented its faith to Emperor Charles V at the Diet of Augsburg on 25 June 1530. Principally drafted by Philipp Melanchthon, Luther’s closest theological collaborator, it became one of the foundational confessional texts of Lutheranism.
There is a genuine historical truth in Leo’s emphasis. Melanchthon did not arrive at Augsburg proclaiming that he had invented a new religion. The Confession was deliberately conciliatory. Its preface hoped that controversies might be settled and Christians brought back to “one simple truth and Christian concord”. Its authors presented themselves as confessing the faith of the one Christian Church, not consciously establishing a rival ecclesial body detached from all that had gone before.³ Saint John Paul II recognised that intention when he marked the Confession’s 450th anniversary in 1980, recalling its authors’ desire to witness to their faith in the “one, holy, catholic and apostolic Church”.⁴ None of that is the problem. The problem begins when an intention for reconciliation is allowed to obscure the actual theological content which made reconciliation impossible.
We do not have to speculate about what Rome thought of the Augsburg Confession in 1530. Rome answered it. The Confutatio Pontificia, prepared at the Emperor’s command and formally read at Augsburg, proceeded through the Confession article by article. Its method is extraordinarily relevant to the present discussion. The Catholic theologians were instructed to approve what was rightly stated and conformed to Catholic doctrine, while identifying what differed from the Catholic Church.⁵ That is the distinction which any serious commemoration in 2030 must preserve.
Rome did not claim that every sentence of the Augsburg Confession was heretical. Quite the contrary. Its profession of the Holy Trinity was accepted. Its Christology was accepted. Much of its teaching on original sin, Baptism, the Real Presence and other doctrines retained recognisably Catholic substance. The Confutatio could praise what the Lutherans had preserved because Catholics did not need to deny common truth merely because it appeared in a Lutheran document. But neither did Rome conclude that the remaining differences were merely the result of unfortunate vocabulary.
When Article XXI denied that Scripture teaches invocation of the saints or asking their help, the Catholic response rejected it. When Article XXIII described clerical celibacy among the abuses requiring remedy and defended clerical marriage, Rome rejected it. When Article XXVII attacked the binding character of monastic vows as they were then understood and practised, Rome rejected it. When Article XXIV discussed the Mass, the Confutatio explicitly approved what agreed with the Catholic Church and rejected what contradicted the Church’s doctrine and universal observance.⁵ That is Augsburg in its proper historical setting: substantial inherited agreement, genuine desire for reconciliation, and real doctrinal contradiction.
The distinction matters because the phrase “pre-confessional ecumenical potential” can suggest something rather more innocent. Certainly the later process which historians call confessionalisation — the consolidation of Catholic, Lutheran and Reformed identities into increasingly definite ecclesiastical, political and cultural forms — had not yet run its course in 1530. The religious map of Europe familiar from the later sixteenth and seventeenth centuries had not yet hardened. Charles V still hoped for concord. Melanchthon still hoped agreement might be possible. But Christianity was not doctrinally unbroken until somebody later decided to turn Augsburg into a confessional dispute.
By 1530 Luther had already been condemned by Pope Leo X, excommunicated in 1521 and placed under the imperial ban at Worms. Religious houses had been dissolved in territories embracing reform. Liturgies and ecclesiastical structures were being altered. Questions concerning authority, grace, the Mass, religious vows, sacramental discipline and the saints were no longer academic disagreements among theologians inside an undisputed ecclesial framework. Indeed, the very existence of the Confutatio demonstrates the point. Catholics examined the Augsburg Confession proposition by proposition because there were propositions to which the Church could say yes and propositions to which she had to say no. Five hundred years later, no honest ecumenism can improve upon that fundamental method.
Leo XIV said that the Confession “only later” came to be understood as a text of divisive confessionalisation.² That formulation can be historically defended if it refers to the later hardening of separate confessional institutions. It becomes much more difficult if it encourages the impression that the document itself was essentially a common Catholic confession whose divisive significance was imposed retrospectively. It was not. The Augsburg Confession confessed something. The Catholic response confessed something. Where the two agreed, there was already unity. Where they contradicted one another, there was not.
The question for 2030 is therefore not whether Catholics and Lutherans can discover admirable features in the Confessio Augustana. They plainly can. Nor is it whether its authors still possessed enormous quantities of Catholic inheritance. They plainly did. The question is whether the anniversary will distinguish faithfully between what in Augsburg belonged to the common inheritance and what represented departure from it. This matters all the more because Leo’s words were not an isolated papal improvisation. A Catholic-Lutheran “Common Word” issued in 2023 had already described the Augsburg Confession as a “pre-confessional” witness possessing lasting ecumenical potential. In June 2025 Cardinal Kurt Koch spoke of it as a “document of common witness”. In January this year the Dicastery for Promoting Christian Unity confirmed that Catholics and Lutherans were planning a joint statement for the five-hundredth anniversary specifically to highlight the Confession’s ecumenical potential.⁶ The programme is therefore established.
The Lutheran World Federation is equally clear about where it hopes that programme will lead. Following its audience with Leo, the LWF reported that the International Lutheran-Catholic Commission on Unity is already working on the joint statement for 2030. LWF President Bishop Henrik Stubkjær expressed the hope that Catholics and Lutherans might commemorate the anniversary together at Augsburg on 25 June 2030. The Lutheran account presents the original Confession as an attempt at reconciliation and says that, although reconciliation failed then, Christians today can begin “telling a different story”.⁷ There is nothing intrinsically wrong with telling history better.
Catholics do not require a mythology in which every sixteenth-century Catholic was virtuous, every ecclesiastical abuse fictitious and every Reformer motivated solely by malice. The late-medieval Church needed reform. Clerical scandals existed. Ecclesiastical government could be corrupt. Some criticisms made by the Reformers were justified even where their remedies were not. Political ambition, dynastic rivalry and personal failure all contributed to the catastrophe which followed. Neither does Catholicism require us to deny genuine progress in theological dialogue. The 1999 Joint Declaration on the Doctrine of Justification achieved a real measure of agreement concerning central truths of justification and clarified that some Reformation-era condemnations do not apply to the positions articulated there. Yet the same process acknowledged that unresolved questions remained concerning ecclesiology, authority, ministry and the sacraments.⁸ Twenty-seven years after Augsburg hosted that declaration, Catholics and Lutherans remain unable to share full sacramental communion precisely because the remaining questions are not historical curiosities.
So let history be purified of caricature. But memory must not be purified of doctrine. This is where the present Augsburg project touches a concern Nuntiatoria has repeatedly raised in its recent coverage of ecumenism and interreligious dialogue. In “Truth Must Be Confessed; Persons Must Be Loved”, we argued that encounter remains genuinely Christian only while charity towards persons remains subordinate to truth about God. Love does not require doctrinal indifference. Dialogue does not become more charitable as its destination becomes less definite.⁹ Likewise, in “Peace Without the King, Unity Without the Church”, examining the revised Charta Oecumenica, we warned against a model of ecumenism in which agreement itself gradually becomes the governing objective. Churches then begin to resemble partners in a permanent federation of difference rather than Christians seeking the restoration of unity in the truth Christ revealed.¹⁰
Augsburg 2030 will test that distinction unusually clearly. The Catholic object is not to perpetuate hostility. It is not to preserve sixteenth-century polemical language as though bitterness were an article of faith. Catholics and Lutherans should speak to one another. They should correct historical falsehoods, acknowledge injustices, cooperate for genuine goods, recognise the Christian truths they already confess together and pray that the scandal of division may finally be overcome. But none of this requires pretending that contradiction is merely wounded communion viewed from the wrong historical angle.
There is also no need to oppose Vatican II in order to make the point. Unitatis redintegratio insists upon ecumenical engagement while simultaneously teaching that the Catholic Church possesses the fullness of the means of salvation and that Christian unity cannot be separated from revealed truth. It warns explicitly against a “false irenicism” which damages the purity of Catholic doctrine and obscures its genuine meaning.¹¹ That warning becomes more, not less, important when the object of commemoration is a document containing propositions once formally disputed between Catholics and Protestants.
That is why Leo XIV’s stated destination should be taken seriously. He spoke not merely of friendship but of “full, visible unity”, of renewed communion in apostolic faith, sacraments and ministries.² Very well. Then Augsburg 2030 must ask the questions which those words entail. What is the apostolic faith concerning justification? What is the Mass? Is it truly and propitiatorily sacrificial? What authority belongs to the Church to bind sacramental and ecclesiastical discipline? What is the nature of Holy Orders? May the saints be invoked? What is the theological character of religious vows? What constitutes the visible Church of Christ, and where does the authority to define Christian doctrine reside? These are not the debris of an unfortunate sixteenth-century quarrel. They concern the content of Catholic faith and the constitution of the Church.
Nor should “inflexibility” become a euphemism for refusing to make contradictions coexist. Leo, quoting the language of his predecessor, spoke of God overcoming “attitudes of inflexibility”.² Human pride is indeed capable of frustrating reconciliation. Catholics have no warrant for cultivating arrogance, hostility or sectarian self-satisfaction. But fidelity is not inflexibility. Dogma is not stubbornness. A Catholic refusing to say that invocation of the saints is simultaneously true and false is not suffering from an ecumenical failure of imagination. Neither is a Lutheran who still believes that his confession faithfully expresses the Gospel helped by Catholics pretending the disagreement does not exist.
The most respectful thing Catholics could bring to Augsburg in 2030 would therefore be exactly what Catholic theologians brought to Augsburg in 1530: the willingness to say clearly where we agree and clearly where we do not. The Confutatio is instructive precisely because it refused both lazinesses. It did not condemn what was Catholic merely because Protestants professed it. Neither did it accept what was contrary to Catholic doctrine for the sake of producing an appearance of concord. That is a model of dialogue considerably more serious than mutual affirmation.
If Catholics and Lutherans use the five-hundredth anniversary to recover what was common, identify what was misunderstood, acknowledge where Catholic reform was genuinely necessary, recognise what later dialogue has clarified, and then name honestly those propositions which remain incompatible, Augsburg could indeed become an important moment in the search for Christian unity. If instead 2030 produces a ceremonial rehabilitation of the Confession as a largely “pre-confessional” expression of common Christianity subsequently spoiled by generations insufficiently ecumenical to appreciate it, the anniversary will have falsified the very history it claims to heal.
The Reformation was not tragic because Christians cared too much about doctrine. It was tragic because Christians who still shared so much discovered that they no longer confessed the same thing about matters upon which communion depended. That is the lesson Rome must not lose at Augsburg. Five centuries later we can certainly speak more courteously. We can understand one another more accurately. We can repent of cruelty, correct caricatures and recognise truths obscured by inherited polemic. But reconciliation worthy of Christ cannot mean travelling backwards into an imaginary moment before anyone had confessed enough to disagree.
The road to unity does not run behind the Augsburg Confession. It runs through the questions Augsburg exposed. And if full visible unity is truly the destination, then the principle must remain the one Nuntiatoria has insisted upon throughout these debates: persons must be loved, history must be told truthfully, error must not be caricatured — and truth must still be confessed.
¹ Nuntiatoria, “Theses Without a Confession: Augsburg and the Ecumenism of Politics”, 29 September 2026.
² Pope Leo XIV, “To the Delegation of the Lutheran World Federation”, 1 October 2026.
³ The Book of Concord, “The Augsburg Confession”, including the Preface to Emperor Charles V.
⁴ Pope Saint John Paul II, “On the Occasion of the 450th Anniversary of the Confessio Augustana”, 25 June 1980.
⁵ Confutatio Pontificia, “Roman Confutation (1530)”; see particularly the responses to Articles XXI, XXIII, XXIV and XXVII. See also The Book of Concord, “Article XXI: Of the Worship of the Saints”, “Article XXIII: Of the Marriage of Priests”, “Article XXIV: Of the Mass”, and “Article XXVII: Of Monastic Vows”.
⁶ Dicastery for Promoting Christian Unity, “Cardinal Koch Visits the Lutheran World Federation”, 15 January 2026; Lutheran World Federation and Dicastery for Promoting Christian Unity, “Common Word”, September 2023.
⁷ Lutheran World Federation, “Telling a Different Story of Renewing Lutheran-Catholic Communion”, 1 October 2026.
⁸ Pontifical Council for Promoting Christian Unity and Lutheran World Federation, “Joint Declaration on the Doctrine of Justification”; Congregation for the Doctrine of the Faith and Pontifical Council for Promoting Christian Unity, “Response of the Catholic Church to the Joint Declaration”.
⁹ Nuntiatoria, “Truth Must Be Confessed; Persons Must Be Loved”, 18 September 2026.
¹⁰ Nuntiatoria, “Peace Without the King, Unity Without the Church”, 14 September 2026.
¹¹ Second Vatican Council, “Unitatis redintegratio”, especially nn. 4 and 11.
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