In one, holy, catholic and apostolic Church…
Church as a word means those called as a particular people to perform a particular task. The Christian Church is the assembly of God’s chosen people called to keep his word and to do his will and his work in the world and in the heavenly kingdom.
In the Scriptures the Church is called the Body of Christ (Rom 12; 1 Cor 10, 12; Col 1) and the Bride of Christ (Eph 5; Rev 21). It is likened as well to God’s living Temple (Eph 2; 1 Pet 2) and is called “the pillar and bulwark of Truth” (1 Tim 3:15).
The Church is one because God is one, and because Christ and the Holy Spirit are one. There can only be one Church and not many. And this one Church, because its unity depends on God, Christ, and the Spirit, may never be broken. Thus, according to Orthodox doctrine, the Church is indivisible; men may be in it or out of it, but they may not divide it.
According to Orthodox teaching, the unity of the Church is man’s free unity in the truth and love of God. Such unity is not brought about or established by any human authority or juridical power, but by God alone. To the extent that men are in the truth and love of God, they are members of His Church.
Orthodox Christians believe that in the historical Orthodox Church there exists the full possibility of participating totally in the Church of God, and that only sins and false human choices (heresies) put men outside of this unity. In non-Orthodox Christian groups the Orthodox claim that there are certain formal obstacles, varying in different groups, which, if accepted and followed by men, will prevent their perfect unity with God and will thus destroy the genuine unity of the Church (e.g., the papacy in the Roman Church).
Within the unity of the Church man is what he is created to be and can grow for eternity in divine life in communion with God through Christ in the Holy Spirit. The unity of the Church is not broken by time or space and is not limited merely to those alive upon the earth. The unity of the Church is the unity of the Blessed Trinity and of all of those who live with God: the holy angels, the righteous dead, and those who live upon the earth according to the commandments of Christ and the power of the Holy Spirit.
The Church is holy because God is holy, and because Christ and the Holy Spirit are holy. The holiness of the Church comes from God. The members of the Church are holy to the extent that they live in communion with God.
Within the earthly Church, people participate in God’s holiness. Sin and error separate them from this divine holiness as it does from the divine unity. Thus, the earthly members and institutions of the Church cannot be identified as such with the Church as holy.
The faith and life of the Church on earth is expressed in its doctrines, sacraments, scriptures, services, and saints which maintain the Church’s essential unity, and which can certainly be affirmed as “holy” because of God’s presence and action in them.
The Church is also catholic because of its relation to God, Christ, and the Holy Spirit. The word catholic means full, complete, whole, with nothing lacking. God alone is full and total reality; in God alone is there nothing lacking.
Sometimes the catholicity of the Church is understood in terms of the Church’s universality throughout time and space. While it is true that the Church is universal—for all men at all times and in all places—this universality is not the real meaning of the term “catholic” when it is used to define the Church. The term “catholic” as originally used to define the Church (as early as the first decades of the second century) was a definition of quality rather than quantity. Calling the Church catholic means to define how it is, namely, full and complete, all-embracing, and with nothing lacking.
Even before the Church was spread over the world, it was defined as catholic. The original Jerusalem Church of the apostles, or the early city-churches of Antioch, Ephesus, Corinth, or Rome, were catholic. These churches were catholic—as is each and every Orthodox church today—because nothing essential was lacking for them to be the genuine Church of Christ. God Himself is fully revealed and present in each church through Christ and the Holy Spirit, acting in the local community of believers with its apostolic doctrine, ministry (hierarchy), and sacraments, thus requiring nothing to be added to it in order for it to participate fully in the Kingdom of God.
To believe in the Church as catholic, therefore, is to express the conviction that the fullness of God is present in the Church and that nothing of the “abundant life” that Christ gives to the world in the Spirit is lacking to it (Jn 10:10). It is to confess exactly that the Church is indeed “the fullness of him who fills all in all” (Eph 1:23; also Col 2:10).
The word apostolic describes that which has a mission, that which has “been sent” to accomplish a task.
Christ and the Holy Spirit are both “apostolic” because both have been sent by the Father to the World. It is not only repeated in the Scripture on numerous occasions how Christ has been sent by the Father, and the Spirit sent through Christ from the Father, but it also has been recorded explicitly that Christ is “the apostle… of our confession” (Heb 3:1).
As Christ was sent from God, so Christ Himself chose and sent His apostles. “As the Father has sent me, even so I send you… receive ye the Holy Spirit,” the risen Christ says to His disciples. Thus, the apostles go out to the world, becoming the first foundation of the Christian Church.
In this sense, then, the Church is called apostolic: first, as it is built upon Christ and the Holy Spirit sent from God and upon those apostles who were sent by Christ, filled with the Holy Spirit; and secondly, as the Church in its earthly members is itself sent by God to bear witness to His Kingdom, to keep His word and to do His will and His works in this world.
Orthodox Christians believe in the Church as they believe in God and Christ and the Holy Spirit. Faith in the Church is part of the creedal statement of Christian believers. The Church is herself an object of faith as the divine reality of the Kingdom of God given to men by Christ and the Holy Spirit; the divine community founded by Christ against which “the gates of hell shall not prevail” (Mt 16:18).
The Church, and faith in the Church, is an essential element of Christian doctrine and life. Without the Church as a divine, mystical, sacramental, and spiritual reality, in the midst of the fallen and sinful world there can be no full and perfect communion with God. The Church is God’s gift to the world. It is the gift of salvation, of knowledge and enlightenment, of the forgiveness of sins, of the victory over darkness and death. It is the gift of communion with God through Christ and the Holy Spirit. This gift is given totally, once and for all, with no reservations on God’s part. It remains forever, until the close of the ages: invincible and indestructible. Men may sin and fight against the Church, believers may fall away and be separated from the Church, but the Church itself, the “pillar and bulwark of the truth” (1 Tim 3:15) remains forever.
... [God] has put all things under His [Christ’s] feet and has made Him the head over all things for the Church, which is His body, the fullness of Him who fills all in all.
... for through Him we… have access in one Spirit, to the Father. So then you are no longer strangers and sojourners, but you are fellow-citizens with the saints and members of the household of God, built upon the foundation of the apostles and prophets, Christ Jesus Himself being the cornerstone, in whom the whole structure is joined together and grows into a holy temple in the Lord; in whom you also are built into it for a dwelling place of God in the Spirit.
... Christ loved the Church and gave Himself up for her, that he might sanctify her by the washing of water with the word, that He might present the Church to Himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish… This is a Great Mystery… Christ and the Church… (Eph 1:21-23; 2:19-22; 5:25-32).