NUNTIATORIA

A Traditional Catholic Response to Pope Leo XIV’s Interreligious Address

On 19 May 2025, Pope Leo XIV delivered a speech in the Clementine Hall to representatives of various Christian denominations and non-Christian religions. While offered in a spirit of cordiality, the address represents a continuation—indeed, an intensification—of the ecumenical and interreligious trajectory begun at Vatican II and expanded under Pope Francis. For traditional Catholics, however, this raises deep concerns about doctrinal clarity, the nature of the Church, and the perennial mission of conversion entrusted to the successors of the Apostles.

The Echo of Francis, the Silence of Tradition

From the outset, Pope Leo praises Francis as “the Pope of Fratelli Tutti,” affirming his promotion of “universal fraternity” and “interreligious dialogue” as the paradigm for his own pontificate. But what does this fraternity consist of? It is telling that the Holy Father lauds interpersonal encounters that “without taking anything away from ecclesial bonds” nevertheless bypass them in favour of human connection. Here again, we see the substitution of subjective relationality for the objective bond of faith and sacramental incorporation into the Mystical Body of Christ.

This shift away from supernatural faith is not new. As Pope Pius XI warned in Mortalium Animos (1928):

“The union of Christians can only be promoted by promoting the return to the one true Church of Christ, which they have unhappily left.”¹

To praise unity as an aspiration detached from doctrinal submission to the one true Faith is to offer a false peace—pax sine veritate.

Nicene Creed as Platform for Pluralism?

The speech invokes the 1700th anniversary of the First Council of Nicaea and its formulation of the Creed “shared by all Churches and Ecclesial Communities.” But this is a dangerous half-truth. The Nicene Creed, as defined in 325 and completed at Constantinople (381), is a dogmatic definition binding on all Christians. It is not a vague spiritual banner to be interpreted diversely. Pope Leo’s invocation of Nicaea is historically ironic: that Council anathematized the Arians, and subsequent councils condemned Monophysites, Nestorians, and other heresies now represented in the very “ecclesial communities” welcomed here.

St. Paul, after all, did not say “speak your truth in fraternity,” but rather: “One Lord, one faith, one baptism” (Eph 4:5).

Synodality as Ecumenical Vehicle?

Leo XIV affirms his commitment to synodality—an ambiguous post-conciliar concept—with the claim that it is “closely linked” to ecumenism. But what does this imply? The answer, perhaps unintentionally, comes later in the address: synodality is not about deeper fidelity to Tradition, but about expanding participation “in the spirit of human fraternity.” In short, it is democracy in the service of pluralism—not hierarchy in service of revealed truth.

Indeed, Pope Pius XII explicitly warned:

“The Church is not a democracy, nor was it instituted as one by its divine Founder.”²

Religious Dialogue Without Conversion?

Nowhere in this address does the Pope exhort non-Catholics to conversion, baptism, or union with the one true Church. Instead, Judaism and Islam are praised as fellow searchers of the will of God, and the 2019 Abu Dhabi Document—whose formulation that “the diversity of religions is willed by God” was condemned as “heretical” by Bishop Athanasius Schneider³—is approvingly cited.

But the Catholic Church has always taught the contrary:

“The Catholic Church rejects nothing that is true and holy in these [non-Christian] religions. Yet she proclaims and is in duty bound to proclaim without fail, Christ who is ‘the Way, the Truth, and the Life’.”⁴

Dialogue cannot replace evangelisation. Friendship must never substitute for mission.

A Peace Not of This World

The speech closes with calls for global disarmament, ecological development, and economic equity—laudable temporal concerns, but insufficient as a Gospel. The Apostles did not gather the nations to dialogue about shared social concerns; they preached repentance and the forgiveness of sins in the name of Jesus Christ.

As Pope St. Pius X thundered:

“There is no true civilization without a moral civilization, and no moral civilization without the true religion.”⁵

Peace without conversion is merely the calm before the storm. Only the Peace of Christ, in the Kingdom of Christ, can satisfy the cry of the human heart.

Conclusion

While Pope Leo XIV’s tone is measured and his intentions presumably charitable, the theological substance of his address continues the problematic conciliar paradigm: elevating fraternity above faith, dialogue above doctrine, and encounter above evangelisation. Traditional Catholics must view such speeches not as hopeful signs, but as calls to renewed witness—firm in doctrine, clear in mission, and faithful to the unchanging truth that outside the Catholic Church “there is neither salvation nor the remission of sins.”⁶

Footnotes

1. Mortalium Animos, Pope Pius XI, 1928, §10.
2. Mystici Corporis Christi, Pope Pius XII, 1943, §61.
3. Bp. Athanasius Schneider, Christus Vincit, Angelico Press, 2019, p. 130.
4. Nostra Aetate, Vatican II, 1965, §2—emphasis added.
5. Pope St. Pius X, Letter to the French Bishops, June 13, 1907.
6. Cantate Domino, Council of Florence, 1442 (Denzinger 714).