Pope Leo XIV calls Christians to ecumenism to be architects of reconciliation and peace

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

ACI Prensa Staff, Aug 22, 2025 / 15:07 pm (CNA).

Pope Leo XIV has issued an ecumenical appeal to all Christians to be architects of reconciliation and peace throughout the world on the occasion of Ecumenical Week, which is being celebrated in Stockholm Aug. 18–24.

In a message published Aug. 22 by the Vatican press office, the pontiff recalled that this initiative, in which Christians of different denominations participate, coincides with the centenary of the Christian Conference on Life and Work held in Stockholm in 1925 and the 1,700th anniversary of the Council of Nicaea.

Regarding the council held in 325, Leo XIV explained that with the formulation of the Creed, the Council Fathers “articulated the faith that continues to bind Christians together,” making that occasion “a courageous sign of unity amid difference — an early witness to the conviction that our shared confession can overcome division and foster communion.”

Regarding the meeting convened in Stockholm 100 years ago, the pope emphasized that its proponent “the pioneer of the early ecumenical movement, Archbishop Nathan Söderblom, Lutheran archbishop of Uppsala,” held the conviction that “service unites” and proposed joining forces in “‘practical Christianity’ — to serve the world together in the pursuit of peace, justice, and human dignity.”

Leo XIV noted that, although the Catholic Church was not present at that first meeting, “we stand with you today as fellow disciples of Christ, recognizing that what unites us is far greater than what divides us.”

He emphasized that since the Second Vatican Council, “the Catholic Church has wholeheartedly embraced the ecumenical path,” reflected in the decree Unitatis Redintegratio, which called “dialogue in humble and loving fraternity, grounded in our common baptism and our shared mission in the world.”

“We believe that the unity Christ wills for his Church must be visible and that such unity grows through theological dialogue, common worship where possible, and shared witness in the face of humanity’s suffering,” the pontiff said in his message.

Leo XIV also highlighted the theme of this year’s meeting, “Time for God’s Peace,” as a message that “could not be more timely” as we contemplate “the deep scars of conflict, inequality, environmental degradation, and a growing sense of spiritual disconnection.”

Peace, the Holy Father emphasized, “is not merely a human achievement but a sign of the Lord’s presence with us. This is both a promise and a task, for the followers of Christ are summoned to become artisans of reconciliation: to confront division with courage, indifference with compassion, and to bring healing where there has been hurt.”

In reference to the ecumenical work carried out by his predecessors, Leo XIV said he is pleased that during the ecumenical meeting “my delegation is able to be present as a sign of the Catholic Church’s commitment to continuing the journey of praying and working together, wherever we can, for peace, justice, and the good of all.”

This story was first published by ACI Prensa, CNA’s Spanish-language news partner. It has been translated and adapted by CNA.