"Christian Church is a Protestant ecclesiological term referring to the church invisible comprising all Christians, used since the Protestant Reformation in the 16th century. In this understanding, "Christian Church" (or "catholic church") does not refer to a particular Christian denomination but to the "body" or "group" of believers, both defined in various ways. A prominent example of this is the branch theory maintained by some Anglicans. This is in contrast to the one true church applied to a specific concrete Christian institution, a majority Christian ecclesiological position maintained by the Catholic Church, the Eastern Orthodox Church, the Oriental Orthodox churches, Assyrian Church of the East and the Ancient Church of the East." - (en.wikipedia.org 09.01.2021)
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