One, holy, catholic, and apostolic Church

Catholicism professes, on the basis of the creed, that the Church founded by Christ is one, holy, catholic, and apostolic. In the contemporary official reading, the fullness of the means of salvation subsists in the Catholic Church, without denying that real elements of sanctification and truth exist outside its visible boundaries. The mark of unity is related to the same faith, the same sacraments, and hierarchical communion; holiness derives from Christ and not from the historical sinlessness of all its members; catholicity points to universality and the fullness of faith; and apostolicity links the Church to the witness and succession of the apostles. Frequent objections question exclusivism, historical scandals, and the tension between universality and local diversity. There is internal debate over how to interpret the expression subsistit in from Vatican II and over the ecumenical scope of this language.

Supportive

1 Timothy 3:15

bible,new-testament,church,magisterium

The Church is called the pillar and bulwark of the truth.

In this pastoral passage, the Church of the living God is described as the pillar and bulwark of the truth. Catholic tradition uses it to ground the importance of the visible Church in preserving and transmitting the faith. It also appears in arguments about the magisterium, ecclesiology, and apostolic continuity.

Lumen Gentium 8

council,vatican-ii,church,ecclesiology,pope

Vatican II text on the Church of Christ subsisting in the Catholic Church.

Lumen Gentium 8 states that the Church of Christ subsists in the Catholic Church, governed by the successor of Peter and the bishops in communion with him. The text is crucial for modern Catholic ecclesiology because it combines affirmation of fullness with recognition of elements of sanctification outside the visible boundaries of Roman communion.

Nicene-Constantinopolitan Creed

creed,council,trinity,church,christ

Profession of faith that defines the classical language about God, Christ, and the Church.

The creed formulated at Nicaea and Constantinople summarizes ancient Christian faith in normative language: one God, the Son consubstantial with the Father, the Holy Spirit, the one, holy, catholic, and apostolic Church, baptism, and the future resurrection. In Catholicism, it functions as a doctrinal synthesis and universal liturgical reference.