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Ecumenism and the World Council of Churches
WCC founded 1948· Church or tradition· Church, doctrine & the world
Historical recordConfirmed by archaeology, outside sources or contemporary records.
The movement for unity among separated churches, given an institution in the World Council of Churches, founded in Amsterdam in 1948.
See it on the Bible & Christianity map →What it is
It grew from the 1910 Edinburgh Missionary Conference, where missionaries saw church division as a scandal on the mission field. In August 1948, 147 churches formed the World Council of Churches (WCC) in Amsterdam. Today about 350 Protestant, Orthodox, Anglican and other churches belong, representing some 580 million Christians. The Catholic Church is not a member but works closely with it. The WCC held its 10th Assembly in Busan, South Korea, in 2013.
Why it matters
After centuries of mutual condemnation, churches began dialogues that produced joint statements on baptism, the Eucharist and salvation, lifted ancient excommunications and made cooperation normal.
Sources and history
WCC assembly records and member lists, and official joint declarations, such as the 1965 Catholic–Orthodox statement and the 1999 Lutheran–Catholic declaration, all published.
Questions and debates
Critics, including many evangelicals and some Orthodox, say it trades doctrine for politics; in Korea, the Busan assembly drew conservative protests. Whether full visible unity is achievable remains open.
Connections (3)
▸Ecumenism and the World Council of Churches began to heal Great Schism: East and West splitHistorical record
The connection
On December 7, 1965, Pope Paul VI and Patriarch Athenagoras I of Constantinople lifted the mutual excommunications of 1054, regretting the 'offensive words' on both sides. Their January 1964 meeting in Jerusalem was the first between a pope and that patriarch in over 500 years. Formal Catholic–Orthodox theological dialogue began in 1980.
When and where
Jerusalem, January 1964; the joint declaration read simultaneously in Rome and Istanbul, December 7, 1965. Later popes and Patriarch Bartholomew have continued the meetings.
Historical evidence
The 1965 Joint Catholic–Orthodox Declaration is published by both churches; photographs and records of the meetings survive.
Questions and debates
Lifting excommunications did not restore shared communion. Papal authority and the filioque remain unresolved, and the Orthodox are themselves divided: Moscow broke with Constantinople in 2018 over Ukraine.
▸Second Vatican Council embraced Ecumenism and the World Council of ChurchesHistorical record
The connection
In 1928 Pius XI had forbidden Catholics to take part in ecumenical meetings. Vatican II reversed course: its decree Unitatis Redintegratio (1964) made restoring Christian unity a 'principal concern,' recognized Protestant baptism and called Protestants 'separated brethren.' Protestant and Orthodox observers attended, and Catholics joined WCC theological work in 1968.
When and where
Rome: Secretariat for Promoting Christian Unity founded 1960 under Cardinal Augustin Bea; decree approved November 21, 1964.
Historical evidence
The text of Unitatis Redintegratio set beside Pius XI's encyclical Mortalium Animos (1928) shows the reversal.
Questions and debates
What it means that Christ's church 'subsists in' the Catholic Church is debated; a 2000 Vatican document saying Protestant bodies are not 'churches in the proper sense' stung many.
▸Ecumenism and the World Council of Churches led to a 1999 Lutheran–Catholic accord on Faith alone, Scripture alone (Reformation principles)Historical record
The connection
How sinners are made right with God, the question that split Luther from Rome, became the focus of decades of dialogue. The 1999 Joint Declaration affirmed that 'by grace alone, in faith in Christ's saving work and not because of any merit on our part, we are accepted by God,' and said the 16th-century condemnations do not apply to it.
When and where
Signed in Augsburg, Germany, on Reformation Day, October 31, 1999, by the Lutheran World Federation and the Vatican; Methodists (2006), Reformed (2017) and Anglicans later joined.
Historical evidence
The signed declaration and its official annex are published by both churches.
Questions and debates
More than 150 German Protestant theologians protested that it blurred real differences, and disputes remain over the church, the sacraments and papal authority.