Ecumenism

Ecumenism (/ɪˈkjuːməˌnɪzəm/ ih-KEW-mə-niz-əm; alternatively spelled oecumenism) – also called interdenominationalism, or ecumenicalism – is the concept and principle that Christians who belong to different Christian denominations should work together to develop closer relationships among their churches and promote Christian unity. The adjective ecumenical is thus applied to any non-denominational or inter-denominational initiative which encourages greater cooperation and union among Christian denominations and churches. Ecumenical dialogue is a central feature of contemporary ecumenism.

The fact that all Christians belonging to mainstream Christian denominations profess faith in Jesus, believe that the Bible is inspired by God,^{[citation needed]} and receive baptism according to the Trinitarian formula is seen as being a basis for ecumenism and its goal of Christian unity. Ecumenists cite John 17:20–23 as the biblical grounds of striving for church unity, in which Jesus prays "may all be one" in order "that the world may know" and believe the Gospel message.

In 1920, the Ecumenical Patriarch of the Eastern Orthodox Church, Germanus V of Constantinople, wrote a letter "addressed 'To all the Churches of Christ, wherever they may be', urging closer co-operation among separated Christians, and suggesting a 'League of Churches', parallel to the newly founded League of Nations". In 1937, Christian leaders from mainstream Christian churches resolved to establish the World Council of Churches, to work for the cause of Christian unity; it today includes churches from most major traditions of Christianity as full members, including the Assyrian Church of the East, the Old Catholic Church, the Oriental Orthodox Churches, the Lutheran World Federation, the Anglican Communion, the Baptist World Alliance, the Mennonite churches, the World Methodist Council, the Moravian Church, the Pentecostal churches and the World Communion of Reformed Churches, as well as almost all jurisdictions of the Eastern Orthodox Church; the Roman Catholic Church participates as an observer, sending delegates to official gatherings. Substantial agreement between various Christian denominations, especially those of Catholicism and Protestantism, has led to a unified presentation of the Christian religion in The Common Catechism.

Many regional councils affiliated with the World Council of Churches, such as the Middle East Council of Churches, National Council of Churches in Australia and Christian Churches Together, work for the cause of Christian unity on the domestic level, with member denominations including churches from the Oriental Orthodox, Lutheran, Roman Catholic, Eastern Orthodox, Methodist, Anglican, and Reformed traditions, among others.

Each year, many ecumenical Christians observe the Week of Prayer for Christian Unity for the goal of ecumenism, which is coordinated by the World Council of Churches and adopted by many of its member churches.

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. The ecumenical vision comprises both the search for the visible unity of the Church (Ephesians 4:3) and the "whole inhabited earth" (Matthew 24:14) as the concern of all Christians. In Christianity, the qualification ecumenical was originally and still is 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 Eastern Orthodox Church) rather than being restricted to one of its constituent local churches or dioceses. Used in this sense, the term carries no connotation of re-uniting the historically separated Christian denominations but presumes a unity of local congregations in a worldwide communion.

The term ecumenism as it is now commonly used refers to interdenominational cooperation between different Christian churches. These initiatives can range from local churches of different denominations operating a soup kitchen for the poor, hosting an ecumenical Bible study with participants from different Christian traditions, inviting all baptized Christians to partake in a Lovefeast when churches celebrate them, to holding an ecumenical Stations of the Cross service on Fridays during the Christian liturgical season of Lent with the service being held at a different local church each Friday (e.g. Catholic, Lutheran, Moravian, Anglican, Reformed and Methodist). The ultimate goal of ecumenism is the recognition of sacramental validity, eucharistic sharing, and the reaching of full communion between different Christian denominations. There are a variety of different expectations of what that Christian unity looks like, how it is brought about, what ecumenical methods ought to be engaged, and what both short- and long-term objectives of the ecumenical movement should be.

Baptism according to the Trinitarian formula, which is done in most mainstream Christian denominations, is seen as being the grounds for Christian ecumenism, the concept of unity amongst Christians. With respect to ecumenism, A. W. Tozer maintained that "Unity in Christ is not something to be achieved; it is something to be recognized." Ecumenists cite John 17:20–23 as the Biblical basis of striving for church unity, in which Jesus prays that Christians "may all be one" in order "that the world may know" and believe the Gospel message. As such, ecumenism has a strong implication for the Church's mission of evangelism, which is referenced in John 13:35: "By this all men will know that you are my disciples, if you love one another". Additionally, Jesus emphasized that the ties of Christians to one another are much greater than those to blood relatives.