Denominationalism is the division of a religion into separate religious denominations. The term is particularly used about the various Protestant schools of thought. Some groups of such denominations are Note that this kind of denomination is not that of a coin or banknote. ... Protestantism is a general grouping of denominations within Christianity. ...

• The Presbyterians
• The Methodists
• The Anglicans
• The Lutherans
• The Baptists

Some denomination-type groups do not view themselves as such. Examples include Presbyterianism is part of the Reformed churches family of denominations of Christian Protestantism based on the teachings of John Calvin which traces its institutional roots to the Scottish Reformation, especially as led by John Knox. ... The Methodist movement is a group of denominations of Protestant Christianity. ... The term Anglican (from the Angles or English) describes those people and churches following the religious traditions developed by the established Church of England. ... The Lutheran movement is a group of denominations of Protestant Christianity by the original definition. ... Baptist churches are part of a Christian movement often regarded as an Evangelical, Protestant denomination. ...

• The Church of Christ (may be more a "communion" than a denomination)
• The Eastern Orthodox churches (may be more a "communion" than a denomination)
• Churches of the Catholic Communion, most notably the Roman Catholic Church

Many Christians view denominationalism as a regrettable fact. The current trend as of 2005 is that the divisions are becoming less sharp, and there is an increasing cooperation between denominations. (See denomination for a distinction between denomination and association in religious governance.) The Churches of Christ are a body of autonomous Christian congregations that have roots in the Stone-Campbell Restoration Movement. ... Eastern Orthodoxy (also called Greek Orthodoxy and Russian Orthodoxy) is a Christian tradition which represents the majority of Eastern Christianity. ... This article deals with the legal structure of the sui juris particular churches of the Roman Catholic Church, and will soon be merged with that article. ... The Roman Catholic Church is the largest religious denomination of Christianity with over one billion members. ... 2005 is a common year starting on Saturday of the Gregorian calendar. ... Note that this kind of denomination is not that of a coin or banknote. ...

For an American example, despite historically deep differences in their respective theologies, few lay members of the United Methodist Church and the United Presbyterian Church could give an account of what those differences are. It is likely that laypeople from one denomination who attended a worship service of the other would find themselves in a mostly familiar environment. A far deeper divide, one that encompasses theological, cultural, and language differences, divides the neo-evangelical members of the Confessing Church movement in either denomination from the adherents of liberal Christianity. This division, though, exists in both denominations; and it is likely that members on either side of the inter-denominational line would have more in common with their counterparts in the other than they do with those on the other side of that line within the same denomination. The United Methodist Church is the largest Methodist denomination, and the second-largest Protestant one, in the United States. ... This article needs cleanup. ... Neo-Evangelicalism is the trend that started in the Fundamentalist movement in the middle of the twentieth century, among conservative Protestants, as a rejection of Fundamentalist separatism. ... The Confessing Movement is a neo-Evangelical movement within several mainline Protestant churches to return those churches to what the members of this movement see as greater theological orthodoxy. ... Introduction Liberal Christianity, Progressive Christianity or Liberalism is movement of Christianity that is characterised by these points; diversity of opinion less emphasis on the literal interpretation of Scripture an intimate and personal view of God wider scope in their views on salvation (including universalist beliefs) non-traditional views on heaven...

Theological denominationalism ultimately denies reality to any apparent doctrinal differences among the "denominations", reducing all differences to mere matters de nomina--"of names". Theology is literally rational discourse concerning God (Greek θεος, theos, God, + λογος, logos, rational discourse). By extension, it also refers to the study of other religious topics. ...

A denomination in this sense is created when part of a church no longer feel they can accept the leadership of that church as a spiritual leadership due to a different view of doctrine or what they see as immoral behaviour, but the schism does not in any way reflect either group leaving the Church as a theoretical whole.

This particular doctrine is, of course, unacceptable to those Christian groups that see themselves as being the "One Holy Catholic and Apostolic Church" as a whole. This includes the Eastern Orthodox, the Roman Catholics, and the Oriental Orthodox Communion, each of which claims to be the exclusive "Holy, Catholic, and Apostolic Church". In these denominations, it is not possible to have a separation over doctrinal or leadership issues, and any such attempts automatically are a type of schism. Christianity is an Abrahamic religion based on the life, teachings, death by crucifixion, and resurrection of Jesus of Nazareth as described in the New Testament. ... One Holy Catholic and Apostolic Church is a phrase in the Nicene Creed (μίαν αγίαν καθολικήν καί αποστολικήν Έκκλησίαν) that also appears partly in the Apostles Creed (the holy catholic church). It indicates the four marks of the Church – unity, holiness, catholicity and apostolicity – and is based on the premise... ... This article considers Catholicism in the broadest ecclesiastical sense. ... The term Oriental Orthodoxy refers to the churches of Eastern Christian traditions that keep the faith of only the first three ecumenical councils of the undivided Church - the First Council of Nicaea, the First Council of Constantinople and the Council of Ephesus - and rejected the dogmatic definitions of the Council... The word schism, from the Greek σχισμα, schisma (from σχιζο, schizo, to split), means a division or a split, usually in an organization. ...