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Pope Leo XIV and Ecumenical Patriarch Bartholomew I of Constantinople at an ecumenical event marking the 1,700th anniversary of Nicene Creed, in Iznik, Turkey, on November 28th, 2025. / Screenshot: Vatican Media

Pope Leo XIV Marks Nicaea Anniversary, Urges Christians to Overcome Divisions

Nov 28, 2025

Pope Leo XIV commemorated the 1700th anniversary of the First Council of Nicaea on Thursday in the Turkish city historically known as the birthplace of the Nicene Creed, calling Christians to overcome “the scandal of divisions” and to renew their commitment to unity.

Pope Leo XIV encourages Catholic clergy, religious brothers and sisters, and lay pastoral workers to see the Catholic community’s small size as a strength during an encounter at the Cathedral of the Holy Spirit in Istanbul, Turkey, on Nov. 28, 2025. / Credit: Vatican Media.

Pope Leo XIV Reminds Turkish Catholic Minority of the "logic of littleness"

Nov 28, 2025

Pope Leo XIV encouraged Turkey’s small Catholic community Friday to rediscover what he called the Gospel’s “logic of littleness,” urging them not to be discouraged by their tiny numbers but to recognize in them the strength of authentic Christian witness.

Pope Leo XIV with Turkish President Recep Tayyip Erdoğan in Ankara, Turkey, on November 27, 2025. / Vatican Media

Pope Leo Denounces "might is right" in Address to Turkish Authorities

Nov 27, 2025

Pope Leo XIV opened his first international trip on Thursday with a sweeping call for unity, renewed dialogue, and a rejection of the global drift toward division and violence. Speaking in Turkey’s capital of Ankara on Nov. 27 during his formal welcome by President Recep Tayyip Erdoğan, the pope said he hoped Turkey could be “a source of stability and rapprochement between peoples” and serve the cause of a “just and lasting peace.”

Pope Leo XIV receives Patriarch Bartholomew of Constantinople at the Vatican on May 30, 2025. / Vatican Media

Pope Leo XIV Urges Christians to Move Beyond Outdated Theological Disputes

Nov 23, 2025

Pope Leo XIV has called on Christians to move beyond “theological controversies” that no longer serve the cause of unity and to rediscover together the faith professed at the Council of Nicaea 1,700 years ago.

Archbishop Gintaras Grušas and Greek Orthodox Archbishop Nikitas Loulias present the signed updated Ecumenical Charter to Pope Leo XIV on Nov. 6, 2025. / Credit: Vatican Media

Pope Leo XIV Receives European Christian Leaders After Signing of New Ecumenical Charter

Nov 6, 2025

Pope Leo XIV received in a Nov. 6 audience the members representatives of the Christian Churches of Europe, who met in Rome to sign the updated “Charta Œcumenica.”

Pope Leo XIV waves to pilgrims gathered in St. Peter’s Square for his Sunday Angelus on Oct. 26, 2025, at the Vatican. / Credit: Vatican Media

Pope Leo to Pray at Tomb of St. Charbel During First Apostolic Journey to Turkey, Lebanon

Oct 27, 2025

The trip will center on two key moments: a pilgrimage to mark the 1,700th anniversary of the First Council of Nicaea and a visit to the tomb of St. Charbel Makhlouf.

Pope Leo XIV waves to pilgrims gathered for the Mass for the Jubilee of Catechists on Sept. 28, 2025, in St. Peter’s Square at the Vatican. / Credit: Vatican Media

Pope Leo XIV to Make First International Trip, to Turkey and Lebanon

Oct 7, 2025

Pope Leo XIV will visit Turkey and Lebanon in the first apostolic journey of his pontificate, to take place from Nov. 27 to Dec. 2, the Vatican announced Tuesday.

Pope Leo XIV presides over an ecumenical commemoration of the martyrs and witnesses of faith of the 21st century at Rome’s Basilica of St. Paul Outside the Walls on September 14, 2025. / Elias Turl

"No one can silence their voice": Pope Leo XIV Honors Modern Martyrs at Ecumenical Service

Sep 14, 2025

Pope Leo XIV led an ecumenical commemoration of the martyrs and witnesses of faith of the 21st century at Rome’s Basilica of St. Paul Outside the Walls on Sunday, stressing that “even though they have been killed in body, no one can silence their voice or erase the love they have shown.”

Pope Leo XIV meets with a U.S. ecumenical group led by Cardinal Joseph Tobin and Greek Orthodox Archbishop Elpidophoros of America on July 17, 2025, at the Vatican, encouraging them to “return to the roots of our faith” in their pilgrimage to Italy and Turkey. / Credit: Vatican Media

Pope Leo XIV Calls Christians to Ecumenism to be Architects of Reconciliation and Peace

Aug 22, 2025

Pope Leo XIV issued an ecumenical appeal to all Christians to be architects of reconciliation and peace throughout the world on the occasion of Ecumenical Week.

Pope Leo XIV spoke about unity on Sunday, June 29, after bestowing the pallium on 54 new metropolitan archbishops on the Solemnity of Saints Peter and Paul, patrons of the city of Rome. / Credit: Vatican Media

Pope Leo XIV Says the Unity of the Church "is nourished by forgiveness and mutual trust"

Jun 29, 2025

Pope Leo XIV on Sunday spoke about unity in the Catholic Church after bestowing the pallium on 54 new metropolitan archbishops on the Solemnity of Saints Peter and Paul, patrons of the city of Rome. 

A recent meeting of various members of the ecumenical initiative Easter Together 2025. / Credit: Courtesy of Easter Together 2025

Ecumenical Initiative Calls for Unity to Celebrate Easter Together

Feb 15, 2025

This year both Easters — Catholic and Orthodox — fall on the same date, April 20, due to the alignment of the Julian and Gregorian calendars.

Pope Francis presides over vespers at the Basilica of St. Paul Outside the Walls, accompanied by masters of ceremonies, marking the conclusion of the Week of Prayer for Christian Unity, Jan. 25, 2025. / Credit: Daniel Ibáñez/CNA

Pope Sees "providential" Moment as Catholics, Orthodox Hope They Could Celebrate Easter Together in 2025

Jan 25, 2025

Pope Francis emphasized that hope is “always possible” in Jesus Christ during an ecumenical vespers service marking both the Week of Prayer for Christian Unity

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican, Oct. 4, 2021. / Vatican Media.

A Path Towards Unity: Pope Francis Proposes Joint Catholic-Orthodox Celebration of Nicaea Anniversary

Nov 30, 2024

The letter was delivered by Cardinal Kurt Koch during his visit to Istanbul for the patronal feast of the Orthodox Church.

Young people lead a procession in Protomartyrs Square at the Vatican for an ecumenical prayer service on Oct. 11, 2024. / Credit: Vatican Media

Pope Francis, Synod Pray Where First Christian Martyrs of Rome Were Killed

Oct 11, 2024

The ecumenical prayer vigil Oct. 11 was held in Roman Protomartyrs Square inside Vatican City.

Cardinal Kurt Koch speaks to journalists at the Synod on Synodality press briefing held at the Vatican’s Holy See Press Office on Thursday, Oct. 10, 2024. / Credit: Daniel Ibañez/CNA

At Synod on Synodality, Non-Catholic Delegates Put Christian Unity in Focus

Oct 10, 2024

According to Cardinal Kurt Koch, the imperative for all Christian churches to journey, pray, and cooperate is Jesus’ own priestly prayer recorded in John 17.

Monsignor Éric de Moulins-Beaufort, president of the French Bishops Conference, presides over the Mass that took place on Sept. 14, 2024, at Maison Abraham (Abraham House) in Jerusalem during the celebrations for the 60th anniversary of its foundation as a pilgrim guest house run by Secours Catholique-Caritas France. / Credit: Latin Patriarchate of Jerusalem

New Pilgrimage Brings Christians, Muslims, and Jews Together in Holy Land at Abraham House

Sep 19, 2024

On Sept. 14 in Jerusalem, a new pilgrimage called “Pilgrims of Hope Way” was inaugurated at the 60th anniversary celebration of Abraham House.

Pope Francis meets with a delegation from the Lutheran World Federation on June 20, 2024, in the Apostolic Palace at the Vatican. / Credit: Vatican Media

"Jesus Christ is the heart of ecumenism": Pope Francis to Lutherans

Jun 21, 2024

In his talk given during the audience in the Apostolic Palace at the Vatican, the Holy Father called this encounter “an important gesture of ecumenical fraternity.”

Pope Francis leads an ecumenical second vespers at the Basilica of St. Paul Outside the Walls in Rome on the feast of the Conversion of St. Paul, Jan. 25, 2024. | Credit: Daniel Ibañez/CNA

Christian Unity Must Be Rooted in Prayer, Pope Says at Ecumenical Vespers

Jan 25, 2024

Marking the conclusion of the Week of Prayer for Christian Unity, Pope Francis hosted an ecumenical vespers at Rome’s Basilica of St. Paul Outside the Walls.

The Sept. 30 prayer service, called “Together,” which was organized by the ecumenical community Taizé, included eight minutes of silence for personal prayer. | Credit: Vatican Media

Pope Francis Calls Silence "essential" at Prayer Vigil for Synod on Synodality

Sep 30, 2023

Pope Francis told those gathered at an ecumenical prayer vigil days before the opening of the Synod on Synodality that silence is essential for Christians.

Credit: TTstudio/Shutterstock

Diocese of Rome: Thousands Expected at Vatican for Ecumenical Prayer Vigil Ahead of Synod

Sep 25, 2023

The prayer service will take place just days before the launch of the 16th General Assembly of the Synod of Bishops in Rome over the course of October.