Understanding the Greek Orthodox Church

Study Cards

Grandfather's Axe Paradox

A thought experiment used to argue that despite claiming an unbroken chain of succession, continuous changes and doctrinal additions over centuries transform an entity into something fundamentally distinct from the original New Testament church.

Holy Tradition (Eastern Orthodoxy)

The overarching context within which the Orthodox Church interprets divine revelation, expressed through seven forms: the Bible, Seven Ecumenical Councils, Later Councils, Church Fathers, the Divine Liturgy, Canon Law, and Icons.

Theosis

The central Orthodox doctrine of salvation viewed not as a one-time judicial declaration, but as an ongoing, transformative process of becoming like God and sharing in His divine life.

Essence-Energies Distinction

A theological doctrine popularized by Gregory Palamas stating that while God's inner being is entirely transcendent and unknowable, humans can genuinely experience and participate in His divine operations, presence, and grace.

Synergy (Theology)

The cooperative relationship in Orthodox soteriology between the unmerited grace offered by God and the active, willing obedience of the believer.

Latria

A Greek theological term defined at the Seventh Ecumenical Council to denote the sacrificial adoration, devotion, and supreme worship due strictly to God alone.

Proskynesis

A Greek term signifying physical bowing or veneration, applied within Orthodox theology to show secondary honor, reverence, and respect to saints, icons, and holy relics.

Shachah

The ancient Hebrew verb meaning to bow down or prostrate oneself, used in the Old Testament for both divine worship and civil honor toward human figures.

Tamata

Small, embossed metal votive plaques depicting symbols such as afflicted limbs, infants, or homes, hung before icons as physical petitions or offerings of thanksgiving.

Dormition of the Theotokos

The Orthodox commemoration of the peaceful death, three-day tomb burial, resurrection, and bodily assumption of Mary into heaven.

Transitus Mariae

A body of 3rd- and 4th-century apocryphal writings that provides early narrative accounts of the burial and bodily assumption of Mary.

Agia Zoni

A venerated relic believed in Orthodox tradition to be the holy sash of Mary, handed to the Apostle Thomas as tangible proof of her assumption.

Against Heresies

An early apologetic treatise written by Irenaeus around 150 AD that documented successions of bishops to demonstrate apostolic lineage.

Ecclesiastical History

A 4th-century historical work written by Eusebius that recorded detailed episcopal leadership successions from the apostles to his era.

Apostolic Succession

The theological claim that pastoral authority and doctrine have been unbrokenly transmitted from the original Twelve Apostles through bishops.

Telephone Game Analogy

An illustration used to argue that oral transmission over extended generations causes original doctrines to evolve and become distorted.

Seven Ecumenical Councils

Universally recognized synods in Orthodox tradition that formulated and defended foundational Christian dogmas, including Christology.

The Fathers (Holy Tradition)

Early Christian bishops and theologians whose historical writings and scriptural expositions serve as authoritative witnesses to apostolic doctrine.

The Divine Liturgy

The central act of Orthodox communal worship featuring Scripture readings and the celebration of the Holy Eucharist.

Canon Law (Orthodoxy)

The corpus of ecclesiastical regulations and disciplinary decrees established by early councils and Church Fathers.

Icons (Theology)

Sacred representational imagery functioning as visual theology that affirms the Incarnation and directs honor toward the prototype.

2 Peter 1:20-21

A biblical passage addressing private interpretation, clarifying that prophetic Scripture originated not from human will but from the Holy Spirit.

Bereans

A group of believers praised in Acts 17:11 for diligently examining the written Scriptures daily to evaluate taught messages.

Biblical Inerrancy

The theological conviction that the Bible is completely accurate and free from error in all historical, scientific, and doctrinal statements.

Narrative Mistake

A minor discrepancy or storytelling error permitted in Orthodox readings of Scripture while still preserving its core saving message.

Sun Analogy (Essence-Energies)

A theological illustration where the inaccessible core represents God's essence, while radiating warmth and light represent His accessible energies.

Gregory Palamas

A 14th-century Orthodox theologian who systematically articulated and defended the distinction between God's essence and energies.

Chrismation

An Orthodox sacrament administered immediately following baptism in which anointing with scented oil confers the Holy Spirit.

Holy Mysteries

The eastern liturgical designation for the sacramental rites through which divine grace is imparted to believers.

Holy Unction

An Orthodox mystery in which an individual is anointed with consecrated oil for spiritual and bodily healing.

Holy Orders

The sacrament through which clergy members are set apart and ordained as bishops, priests, or deacons.

Ascetic Struggle (Askesis)

Spiritual disciplines such as fasting, self-control, and charity practiced to tame passions and purify the believer's heart.

Council of Nicaea II (787 AD)

The Seventh Ecumenical Council that addressed the Iconoclastic Controversy by standardizing theological distinctions between latria and proskynesis.

John of Damascus

An 8th-century Father and apologist who defended holy imagery by defining the technical difference between latria and proskynesis.

Iconoclastic Controversy

An 8th- and 9th-century theological conflict over whether bowing before religious images constituted forbidden idolatry.

Ex Voto Suscepto

The Latin phrase meaning 'from the vow made,' serving as the etymological origin for votive offerings such as tamata.

Anatomical Tamata

Votive plaques embossed with images of specific body parts offered to symbolize petitions or thanksgiving for physical healing.

Maphorion

A venerated liturgical relic believed to be the holy robe and veil of Mary, historically credited with preserving Constantinople from military siege.

Sola Scriptura

The theological conviction that the canonical Scriptures are the only infallible and sufficient final authority for doctrine and practice.

Acts 10:25-26

A narrative passage where the Apostle Peter forbids Cornelius from bowing before him, asserting his own shared human nature.

Luke 11:27-28

A biblical account where Jesus shifts praise away from physical maternal ties toward obedience to the Word of God.

2 Timothy 3:16-17

The primary biblical reference asserting that all Scripture is God-breathed and fully sufficient for equipping the servant of God.

Temple of Asclepius

An ancient Greco-Roman healing sanctuary where worshippers historically offered anatomical votive plaques resembling later tamata.

Riza

An ornamental repoussé metal cover placed over an icon to honor the depiction, leaving only faces and hands uncovered.

Votive Candles

Small candles lit by Orthodox worshippers before icons to symbolize intercessory prayers, sacrifice, and spiritual light.

Acts 20:29-30

The Apostle Paul's warning to the Ephesian elders that false teachers would enter the congregation to distort correct doctrine.

Matthew 15:9

A gospel warning quoting Isaiah that condemns replacing divine commandments with human traditions and doctrines.

Six-Books Dormition Apocryphon

An early non-canonical account within the Transitus Mariae literature detailing Mary's death, burial, and subsequent empty tomb.

Later Councils (Holy Tradition)

Regional or post-ecumenical synods whose authority is recognized within Orthodoxy to the extent that they faithfully express the apostolic faith, rather than being automatically universally binding.