Particular Church and Ecclesial Community are not two sizes of denomination: Catholic doctrine uses the first for an episcopally and eucharistically constituted Church and the second for a baptized Christian body lacking the apostolic succession and Eucharistic substance required for Church in the proper sense.
The sacramental dividing line
The 2007 Responses identify separated Eastern bodies possessing Apostolic Succession, valid priesthood, and Eucharist as true particular or local Churches. Communities born from the Reformation that lack succession in Holy Orders and consequently have not preserved the genuine and integral substance of the Eucharistic Mystery are called Ecclesial Communities rather than Churches in the proper sense.[1][2]
Valid Baptism still creates ecclesial reality
Ecclesial Community is not a synonym for false religion or social club. Valid Baptism establishes a sacramental bond, Scripture and faith can nourish grace, and the Spirit uses these communities as means of salvation. Their gifts come from Christ, belong by right to the one Church of Christ, and tend toward Catholic unity even while a constitutive element is absent.[3]
A true Church can remain wounded
A separated particular Church possesses real episcopate and Eucharist, yet lacks Full Communion with the Bishop of Rome, an internal constitutive principle of a particular Church. True status is therefore not equivalent to unimpaired catholicity. Catholic classification affirms both the sacramental reality and the wound rather than choosing one and suppressing the other.[4]
Proper names and proper sense
A Protestant body can lawfully bear Church in its historic proper name, and Catholics can reproduce that name without falsification. The doctrinal phrase Church in the Proper Sense answers a different question about sacramental constitution. Conversely, calling an Orthodox eparchy a denomination can hide the particular-Church reality Catholic doctrine explicitly recognizes.
Classification is corporate, not a verdict on every person
The corporate category concerns ministries, sacraments, doctrine, and visible order. It does not measure the holiness of each member, deny the Christian name to the validly baptized, or assign personal guilt for inherited separation. A Catholic living badly can be less responsive to grace than a devout non-Catholic without altering the bodies' objective classifications.
Directory method
Reliable entries should identify the community's baptismal practice, understanding and validity of Orders, Eucharistic doctrine and celebration, governing structure, and relation to historic episcopal succession. Self-description supplies evidence but not the Catholic judgment by itself. Particular Church, Ecclesial Community, Non-Christian Religion, and association must remain separate fields.
References
- 1.Responses Regarding Certain Aspects of the Doctrine on the Church — The CDF's ratified clarification of subsistence, separated particular Churches, and communities lacking apostolic succession
- 2.Commentary on the Responses Regarding the Doctrine on the Church — The CDF's official commentary on differentiated ecclesiality, proper Church language, true particular Churches, and communities lacking apostolic succession
- 3.Dominus Iesus — The CDF declaration on the one Church of Christ, true separated particular Churches, ecclesial communities, and the origin and orientation of their ecclesial gifts
- 4.Unitatis redintegratio — Vatican II's decree on real though imperfect communion, Baptism as a sacramental bond, Eastern sacramental life, and the saving use of separated Churches and communities