Friday, November 7, 2025

The Ecumenical Movement: A Journey Toward Christian Unity by Father Glenn Baaten

I have been excited to write this three-part article series on the Ecumenical Movement within Christian churches worldwide. In the first article, we explored Jesus' High Priestly Prayer in the seventeenth chapter of St. John’s Gospel, focusing on His call for complete unity within the Church. In the second article, we examined the history of schism and division within the Church, beginning with the split between the Eastern and Western Churches, and then the Protestant-Catholic divide in the West.

In this third article, we will turn our attention to the history of the Ecumenical Movement itself. The impulse of historic Church communions and Protestant denominations to seek dialogue, convergence, and the possibility of visible unity is a laudable effort, one that is driven by Christian charity and the work of the Holy Spirit.

The term ecumenical comes from the Greek word oikoumene, meaning “the whole inhabited world” or “the whole earth.” It refers to the idea of the universal Church—a body of believers united in Christ, regardless of their denominational affiliation. While the desire for unity has been present in Christianity since its inception, the modern Ecumenical Movement began in the early 20th century as a response to the growing divisions among different Christian communities.

The Early Roots of the Ecumenical Movement

The roots of the Ecumenical Movement can be traced to various initiatives in the 19th century, such as the Oxford Movement within the Church of England and the formation of interdenominational organizations. However, the formal movement gained momentum in the 20th century, particularly after the World Missionary Conference in Edinburgh in 1910. This conference was a key milestone in the development of the movement, laying the groundwork for further collaboration among Christian churches.

The Formation of the World Council of Churches

One of the most significant achievements of the Ecumenical Movement was the establishment of the World Council of Churches (WCC) in 1948. The WCC was created to promote cooperation and dialogue among Christian denominations and address global issues such as poverty, social justice, and peace. The WCC now includes over 350 churches from various Christian traditions, including Protestant, Orthodox, and Anglican communities.

The Presbyterian Church (USA), my former denomination, has been an active member of the WCC, alongside other well-known denominations in the U.S. such as the Episcopal Church, the United Church of Christ, the Evangelical Lutheran Church in America, and many other mainline Protestant churches. The goal of these Protestant groups is not to eliminate diversity within Christianity, but to foster a sense of common purpose, shared faith, and Christian solidarity across denominational lines.

The Catholic Perspective on Ecumenism

This is where the Catholic Church’s ecumenical quest for unity differs. The Catholic Church seeks, rightly in my opinion, the visible unity of Christian churches in the way that Jesus prayed for in His High Priestly prayer. The Second Vatican Council's decree on Ecumenism, Unitatis Redintegratio, in its opening statement, notes:

“The restoration of unity among all Christians is one of the principal concerns of the Second Vatican Council. Christ the Lord founded one Church and one Church only. However, many Christian communions present themselves to people as the true inheritance of Jesus Christ; all indeed profess to be followers of the Lord, but they differ in outlook and go their separate ways, as if Christ Himself were divided. Certainly, such division only contradicts the will of Christ, scandalizes the world, and damages the sacred cause of preaching the Gospel to every creature… (yet) in recent times, God has begun to bestow more generously upon divided Christians remorse over their divisions and a longing for unity.”

The document continues in paragraph 4:

“Today, in many parts of the world, under the influence of the grace of the Holy Spirit, many efforts are being made in prayer, word, and action to attain that fullness of unity which Jesus Christ desires. This sacred council, therefore, exhorts all the Catholic faithful to recognize the signs of the times and take an active and intelligent part in the work of ecumenism… Little by little, as the obstacles to perfect ecclesiastical communion are overcome, all Christians will be gathered, in a common celebration of the Eucharist, into the unity of the one and only Church, which Christ bestowed on His Church from the beginning.”

Despite the significant success in engaging various ecclesial communities in dialogue, the Ecumenical Movement has faced considerable challenges. One of the major obstacles remains the continued theological differences between denominations. The Catholic Church and many Protestant denominations remain divided over issues such as the role of the pope, the authority of tradition, and the nature of the Eucharist. These differences have made full theological agreement difficult to achieve.

Additionally, some Catholics, as well as certain Christian denominations, view the Ecumenical Movement with suspicion. More conservative groups argue that the movement undermines the truth of Scripture or dilutes the distinctiveness of their traditions. Others worry that ecumenical dialogue might lead to compromises on essential doctrines, what is known as doctrinal indifferentism.

A Personal Reflection on Ecumenism

From my own experience within the Ecumenical Movement—as both a Protestant pastor and, later, a Catholic priest—I see a beautiful impulse within Catholicism to reach out to our separated Protestant brethren with a spirit of generosity, genuine openness, and invitation. Our task is not to compromise the doctrines and dogmas of the Catholic Church but to present our faith as the fullness of Christ’s Church and offer an invitation to share in the treasury and richness of our beautiful Catholic patrimony.

The Catholic Church’s Commitment to Ecumenism

The Catholic Church has made great strides in its commitment to Ecumenism, from the early days of the Second Vatican Council to the present. In 1980, Pope John Paul II established the Pastoral Provision, which allows Episcopal/Anglican priests to join the Catholic Church and potentially serve as Catholic priests in U.S. dioceses. In fact, our own Bishop Kevin Vann, Ordinary of the Diocese of Orange, California, is the ecclesiastical delegate for the Pastoral Provision nationwide!

Moreover, the Ordinariate was established as a permanent jurisdiction within the Church by Pope Benedict XVI in November 2009. As explained on the Ordinariate’s website, ordinariate.net:

Why was the Ordinariate formed?
The establishment of the Ordinariate of the Chair of Saint Peter was the Vatican’s pastoral response to repeated and persistent inquiries made by Anglican individuals and groups in the United States and Canada who, over time, have come to identify the Catholic Church as their home. Those joining the Ordinariate have discerned they are truly Catholic in what they believe and desire full membership in the Catholic Church.

In November 2009, in response to these inquiries from Anglican groups worldwide, Pope Benedict XVI issued an apostolic constitution called Anglicanorum coetibus, which authorized the creation of “Ordinariates.” These communities are Catholic yet retain elements of Anglican heritage and liturgical practice. Ordinariates have also been established in the United Kingdom (2011) and Australia (2012).

Ecumenism in Action

The formation of the Ordinariates is a significant example of Ecumenism at work in our time. As the Vatican’s pastoral response to those seeking full communion with the Catholic Church, this effort reflects the Church’s commitment to fostering unity while respecting the unique traditions and practices of various Christian communities considering the true treasure which is the Catholic Church.

Dear friends in Christ, this is Ecumenism at work—in our time!

 

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