Eastern Orthodox Church
Creeds
Overview
The Eastern Orthodox Church is a communion of self-governing (autocephalous) churches united by shared doctrine, liturgical tradition, and the authority of the Ecumenical Councils. It traces its origins to the apostles and considers itself the continuation of the original, undivided Church.
Orthodox theology emphasizes theosis (divinization) — the process of becoming more like God through grace. The Church places great importance on the mystery of faith, sacred icons, monasticism, and the Divine Liturgy as the center of spiritual life.
Historical Context
Eastern Orthodoxy developed in the Greek-speaking eastern half of the Roman Empire. Tensions between Rome and Constantinople grew over centuries, centering on papal authority, the filioque clause (whether the Holy Spirit proceeds from the Father alone or from the Father "and the Son"), and liturgical differences.
The Great Schism of 1054 formalized the split. The fall of Constantinople to the Ottomans in 1453 shifted the center of Orthodox influence to Russia and other Slavic nations. Today, the Ecumenical Patriarch of Constantinople holds a position of honor (first among equals) but not jurisdictional authority over other Orthodox churches.
Key Beliefs
The Trinity
One God in three persons. The Holy Spirit proceeds from the Father alone (rejecting the Western filioque addition).
Theosis (Divinization)
The goal of Christian life is to become partakers of the divine nature — not to become God in essence, but to share in His energies through grace.
Sacred Tradition
Scripture is part of Holy Tradition, not separate from it. The seven Ecumenical Councils carry the highest doctrinal authority after Scripture.
Veneration of Icons
Icons are "windows to heaven" — venerated (not worshipped) as means of encountering the saints and Christ depicted in them.
The Mysteries (Sacraments)
The Church recognizes at least seven mysteries, though it avoids strictly numbering or defining them as the West does.
Conciliar Authority
No single bishop holds supreme authority. Doctrine is determined by ecumenical councils and the consensus of the Church (sobornost).
Sacraments
Baptism
Triple immersion in the name of the Trinity. Performed on infants, followed immediately by Chrismation and Communion.
Chrismation (Confirmation)
Anointing with holy chrism immediately after baptism, sealing the gift of the Holy Spirit.
Eucharist (Divine Liturgy)
The body and blood of Christ, received by all baptized Orthodox — including infants. The Divine Liturgy of St. John Chrysostom is the most common form.
Confession
Confession before a priest, who stands as witness. Absolution is granted through a prayer rather than a juridical formula.
Anointing of the Sick (Holy Unction)
Anointing with oil for healing of body and soul, often administered during Holy Week to all faithful.
Holy Orders
Ordination of deacons, priests, and bishops. Married men may be ordained to the diaconate and priesthood; bishops must be celibate (typically monks).
Marriage (Crowning)
The couple is crowned as king and queen of a new domestic church. Divorce is permitted in limited cases, and up to three marriages are allowed.
Church Governance
Episcopal (Conciliar)
The Orthodox Church is organized as a communion of autocephalous (self-governing) churches, each led by a patriarch, metropolitan, or archbishop. The Ecumenical Patriarch of Constantinople is "first among equals" but has no jurisdictional authority over other churches. Major decisions are made through synods and councils at every level.
Worship Style
Liturgical
Orthodox worship is deeply liturgical, centered on the Divine Liturgy — a richly symbolic service featuring chanting (typically a cappella), incense, icons, processions, and the Eucharist. Services can be lengthy (2-3 hours). The congregation typically stands throughout. The liturgical calendar follows the Julian calendar in many churches. The beauty of worship is considered a reflection of heavenly reality.
Catechism Highlights
On Theosis"God became man so that man might become god." — St. Athanasius of Alexandria
On Icons"The honor paid to the image passes on to that which the image represents." — St. Basil the Great
On the Church"We know where the Church is; we do not know where it is not." — Orthodox theological maxim
Distinctive Teachings
- Theosis — humanity's calling is deification through God's uncreated energies2 Peter 1:4Psalm 82:6John 10:34
- Essence-energies distinction — God's essence is unknowable, but His energies are accessibleExodus 33:20–231 Timothy 6:16
- Rejection of the filioque — the Spirit proceeds from the Father aloneJohn 15:26Nicene Creed
- Hesychasm — contemplative prayer practice centered on the Jesus Prayer1 Thessalonians 5:17Matthew 6:6
- No papal supremacy — conciliar governance among equal bishopsActs 15:6–29Galatians 2:11
- The Dormition of Mary rather than the Assumption as a defined dogmaRevelation 12:1