Fast facts
- Began
- Continuous from the early church; formally separate from Rome after the Great Schism of 1054
- Founder / origin
- Claims apostolic succession; no single founder or head
- Followers
- About 220 million
- Figure from
- Pew Research Center, Orthodox Christianity in the 21st Century (2017)
- Where
- Russia (roughly half of all Orthodox Christians), Ukraine, Greece, Romania, Serbia, Bulgaria, Georgia, Ethiopia's neighbours in the Middle East
- Scriptures
- Old Testament following the Greek Septuagint (76–79 books depending on the national church) plus the New Testament
- View of God
- , without the filioque — the Spirit proceeds from the Father alone
What sets Orthodoxy apart
- Authority rests in the seven ecumenical councils and the shared mind of the bishops; the Patriarch of Constantinople is first among equals, not a pope
- Icons are venerated, not worshipped — a distinction defined at the Second Council of Nicaea in 787 after a century of iconoclast controversy
- Theosis: salvation understood as being transformed and made partakers of the divine nature, rather than as a legal transaction
- Rejects the filioque, purgatory as a place, and the Immaculate Conception
- Married men may become priests; bishops are drawn from monastics
- National self-governing churches — Russian, Greek, Serbian and so on — in communion with each other
Practice
The Divine Liturgy is long, sung and heavily ceremonial. Fasting is serious: roughly half the year involves abstaining from meat, dairy and often oil and wine, including the whole of Great Lent. Standing to pray, prostration and the Jesus (PBUH) Prayer repeated on a prayer rope will all feel familiar to a Muslim.
The Islamic view
Where it meets Islam, and where it differs
Common ground
- Serious, disciplined fasting — closer to Ramadan in spirit than anything in Western Christianity.
- Prostration in prayer, ritual washing in some traditions, repeated remembrance of God on a prayer rope.
- A strong sense that has limits and that God in His essence is unknowable — apophatic theology overlaps with the Islamic refusal to define God's how.
- Long historical coexistence with Muslims under the caliphates and the Ottomans; many Orthodox Christians have Muslim neighbours going back generations.
Where Islam differs
- , and crucifixion, all rejected in Islam.
- Veneration of icons and of saints. Islam permits no image in worship and no intercessory prayer to the dead.
- Salvation as participation in the divine nature has no Islamic parallel: the Creator and the creation never merge.
Talking points
- Ask about fasting. An Orthodox Christian who keeps Great Lent will understand Ramadan immediately, and the conversation starts warm.
- Ask what the icon does — the answer 'a window, not a god' opens a real discussion of where the line falls, and why Islam draws it earlier.
- Their own tradition insists God's essence cannot be captured in words. Ask, then, how the infinite God became a body.
Avoid
- Do not call icons idolatry in your opening line; they have argued this question for 1,200 years and have answers ready.
- Do not assume Orthodoxy is 'Catholicism without the pope'. Saying so will be heard as ignorance.
Sources
- Pew Research Center, Orthodox Christianity in the 21st Century (2017)
- Second Council of Nicaea (787) on the veneration of images
- Timothy (Kallistos) Ware, The Orthodox Church
- Qur'an 42:11; 4:171
This overview describes the tradition as its own followers describe it. The Islamic view is kept in its own section above so the description stays honest.
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