Ecumenismwikipedia
ecumenicalecumenisminterdenominationalecumenical movementecumenistecumenicismChristian unityecumenical Christianecumenical dialogueecumenically

Ecumenical council

ecumenical councilecumenical councilsecumenical
In Christianity the qualification ecumenical is originally (and still) used in terms such as "ecumenical council" and "Ecumenical Patriarch" in the meaning of pertaining to the totality of the larger Church (such as the Catholic Church or the Orthodox Church) rather than being restricted to one of its constituent local churches or dioceses.
An ecumenical council (or oecumenical council; also general council) is a conference of ecclesiastical dignitaries and theological experts convened to discuss and settle matters of Church doctrine and practice in which those entitled to vote are convoked from the whole world (oikoumene) and which secures the approbation of the whole Church.

Ecumene

oikoumeneecumeneknown world
The terms ecumenism and ecumenical come from the Greek οἰκουμένη (oikoumene), which means "the whole inhabited world", and was historically used with specific reference to the Roman Empire.
In present usage, it is used as the noun form of "ecumenical" and describes the Christian Church as a unified whole or the unified modern world civilization.

Full communion

full communioncommunionintercommunion
The world's 2.2 billion Christians are visibly divided into different communions or denominations, groupings of Christians and their churches that are in full communion with one another, but to some degree exclusive of other Christians. For example, the Catholic Church is a single church, or communion, comprising 24 distinct self-governing particular churches in full communion with the bishop of Rome (the largest being the Latin Church, commonly called "Roman Catholic"). Most current divisions are the result of historical schisms—a break in the full communion between previously united Churches, bishops, or communities.
In the view of the World Council of Churches, an inter-church organization that includes "most of the world's Orthodox churches, scores of Anglican, Baptist, Lutheran, Methodist and Reformed churches, as well as many United and Independent churches", "the goal of the search for full communion is realized when all the churches are able to recognize in one another the one, holy, catholic and apostolic church in its fullness", a communion "given and expressed in the common confession of the apostolic faith; a common sacramental life entered by the one baptism and celebrated together in one eucharistic fellowship; a common life in which members and ministries are mutually recognized and reconciled; and a common mission witnessing to all people to the gospel of God's grace and serving the whole of creation".

Pope

popepapacypapal
For example, the Catholic Church is a single church, or communion, comprising 24 distinct self-governing particular churches in full communion with the bishop of Rome (the largest being the Latin Church, commonly called "Roman Catholic"). Examples of acts belonging to the former include the mutual revocation in 1965 of the anathemas of 1054 (see below Contemporary developments), returning the relics of Sabbas the Sanctified (a common saint) to Mar Saba in the same year, and the first visit of a Pope to an Orthodox country in a millennium (Pope John Paul II accepting the invitation of the Patriarch of the Romanian Orthodox Church, Teoctist, in 1999), among others.
Currently, in addition to the expansion of the Christian faith and doctrine, the popes are involved in ecumenism and interfaith dialogue, charitable work, and the defense of human rights.

Christian denomination

denominationdenominationsdenominational
The world's 2.2 billion Christians are visibly divided into different communions or denominations, groupings of Christians and their churches that are in full communion with one another, but to some degree exclusive of other Christians. The term is also often used to refer to efforts towards the visible and organic unity of different Christian denominations in some form.
Generally, members of the various denominations acknowledge each other as Christians, at least to the extent that they have mutually recognized baptisms and acknowledge historically orthodox views including the Divinity of Jesus and doctrines of sin and salvation, even though doctrinal and ecclesiological obstacles hinder full communion between churches.

World Council of Churches

WCCWorld Council of ChurchesWorld Conference Faith and Order
Yet, at the same time, the World Council of Churches counts only 348 member churches, representing more than half a billion members. The members of the Anglican Communion have generally embraced the Ecumenical Movement, actively participating in such organizations as the World Council of Churches and the National Council of the Churches of Christ in the USA.
The WCC arose out of the ecumenical movement and has as its basis the following statement:

Presbyterianism

PresbyterianPresbyteriansPresbyterian Church
Protestantism, for example, includes such diverse groups as Adventists, Anabaptists, Baptists, Congregationalists, Evangelicals, Holiness churches, Lutherans, Methodists, Moravians, Presbyterians, Reformed.
In the twentieth century, some Presbyterians played an important role in the ecumenical movement, including the World Council of Churches.

Moravian Church

MoravianMoraviansMoravian Brethren
Protestantism, for example, includes such diverse groups as Adventists, Anabaptists, Baptists, Congregationalists, Evangelicals, Holiness churches, Lutherans, Methodists, Moravians, Presbyterians, Reformed.
They place high value on ecumenism, personal piety, missions and music.

Ecumenical Patriarch of Constantinople

Patriarch of ConstantinoplePatriarchEcumenical Patriarch
In Christianity the qualification ecumenical is originally (and still) used in terms such as "ecumenical council" and "Ecumenical Patriarch" in the meaning of pertaining to the totality of the larger Church (such as the Catholic Church or the Orthodox Church) rather than being restricted to one of its constituent local churches or dioceses.
The Ecumenical Patriarch of Constantinople is first among equals, or first in honor among all Eastern Orthodox bishops, who presides in person—or through a delegate—over any council of Orthodox primates or bishops in which he takes part and serves as primary spokesman for the Orthodox communion especially in ecumenical contacts with other Christian denominations.

Mainline Protestant

mainlinemainline Protestantmainline Protestantism
This schism gives us the Mainline Protestant Churches, including especially the Lutheran and Reformed traditions.
Because of their involvement with the ecumenical movement, mainline churches are sometimes (especially outside the United States) given the alternative label of ecumenical Protestantism.

Ignatius Zakka I Iwas

Patriarch Moran Mor Ignatius Zakka I IwasSeverios ZakkaZakka I Iwas
In modern times, there have also been moves towards healing this division, with common Christological statements being made between Pope John Paul II and Syriac patriarch Ignatius Zakka I Iwas, as well as between representatives of both Oriental Orthodoxy and the Eastern Orthodox Church.
Zakka was known for his involvement in ecumenical dialogue.

Schism

schismschismaticschisms
Most current divisions are the result of historical schisms—a break in the full communion between previously united Churches, bishops, or communities.
However, this view has been challenged in the recent Ecumenical discussion between these two groups, bringing the matter of Chalcedon as a matter of schism, not of heresy.

Ecclesiology

ecclesiasticalecclesiologyecclesiastic
Christianity is the largest religion in the world (making up approximately one-third of the population) and the various divisions have commonalities and differences in tradition, theology, church government, doctrine, and language.
This is the sense of the word in such phrases as Catholic ecclesiology, Protestant ecclesiology, and ecumenical ecclesiology.

George Bell (bishop)

George BellBishop George BellGeorge Bell, Bishop of Chichester
He was a close friend of the English ecumenist George Bell.
George Kennedy Allen Bell (4 February 1883 – 3 October 1958) was an Anglican theologian, Dean of Canterbury, Bishop of Chichester, member of the House of Lords and a pioneer of the ecumenical movement.

Archbishop of Canterbury

archbishop of CanterburyCanterburyArchbishop
Thomas Cranmer as Archbishop of Canterbury introduced the English Reformation in a form compromising between the Calvinists and Lutherans.
In the last two of these functions, he has an important ecumenical and interfaith role, speaking on behalf of Anglicans in England and worldwide.

World Student Christian Federation

Student Christian MovementSCMWSCF
The Eastern Orthodox have participated in the ecumenical movement, with students active in the World Student Christian Federation since the late 19th century.
The World Student Christian Federation (WSCF) is a federation of autonomous national Student Christian Movements (SCM) forming the youth and student arm of the global ecumenical movement.

1910 World Missionary Conference

1910 World Missionary ConferenceWorld Missionary ConferenceEdinburgh 1910 World Missionary Conference
Others see the 1910 World Missionary Conference as the birthplace of the ecumenical movement.
Some have seen it as both the culmination of nineteenth-century Protestant Christian missions and the formal beginning of the modern Protestant Christian ecumenical movement, after a sequence of interdenominational meetings that can be traced back as far as 1854.

Teoctist Arăpașu

TeoctistPatriarch Teoctist of RomaniaTeoctist I
Examples of acts belonging to the former include the mutual revocation in 1965 of the anathemas of 1054 (see below Contemporary developments), returning the relics of Sabbas the Sanctified (a common saint) to Mar Saba in the same year, and the first visit of a Pope to an Orthodox country in a millennium (Pope John Paul II accepting the invitation of the Patriarch of the Romanian Orthodox Church, Teoctist, in 1999), among others.
A promoter of ecumenical dialogue, Patriarch Teoctist invited Pope John Paul II to visit Romania in 1999.

National Council of Churches

Federal Council of ChurchesNational Council of the Churches of Christ in the USACouncil of Churches
The members of the Anglican Communion have generally embraced the Ecumenical Movement, actively participating in such organizations as the World Council of Churches and the National Council of the Churches of Christ in the USA.
NCC is an ecumenical partnership of 38 Christian faith groups in the United States.

Second Vatican Council

Vatican IISecond Vatican Councilconciliar
Before the Second Vatican Council, the main stress was laid on this second aspect, as exemplified in canon 1258 of the 1917 Code of Canon Law:
Several changes resulted from the council, including the renewal of consecrated life with a revised charism, ecumenical efforts towards dialogue with other religions, and the universal call to holiness, which according to Pope Paul VI was "the most characteristic and ultimate purpose of the teachings of the Council".

Syriac Orthodox Church

Syriac OrthodoxSyriac Orthodox Patriarch of Antioch and All the EastJacobite
As part of the ongoing Christological controversy, following the Council of Chalcedon in 451, the next large split came with the Syriac and Coptic churches dividing themselves.
The Syriac Orthodox Church participates in ecumenical discussions, being a member of the World Council of Churches since 1960, and of the Middle East Council of Churches since 1974.

Mar Thoma Syrian Church

Mar ThomaMalankara Mar Thoma Syrian ChurchMMTSC
The church defines itself as "Apostolic in origin, Universal in nature, Biblical in faith, Evangelical in principle, Ecumenical in outlook, Oriental in worship, Democratic in function, and Episcopal in character".

Evangelicalism

evangelicalevangelical Christianevangelicals
Protestantism, for example, includes such diverse groups as Adventists, Anabaptists, Baptists, Congregationalists, Evangelicals, Holiness churches, Lutherans, Methodists, Moravians, Presbyterians, Reformed.
Failing to reform the mainline churches, fundamentalists separated from them and established their own churches, refusing to participate in ecumenical organizations such as the National Council of Churches.

Church of Sweden

LutheranSwedish LutheranChurch of Sweden
Nathan Söderblom, Archbishop of Uppsala, the head of the Lutheran church in Sweden, is known as the architect of the ecumenical movement of the twentieth century.
During the 19th and 20th centuries, a variety of teachings were officially approved, mostly directed towards ecumenism:

Lutheran World Federation

Lutheran ChurchLutheranLutheran World Federation
In 1999, the representatives of Lutheran World Federation and Roman Catholic Church signed the Joint Declaration on the Doctrine of Justification, resolving the conflict over the nature of Justification which was at the root of the Protestant Reformation, although some conservative Lutherans did not agree to this resolution.
The LWF acts on behalf of its member churches in areas of common interest such as ecumenical and interfaith relations, theology, humanitarian assistance, human rights, communication, and the various aspects of mission and development work.