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Key Liturgy and Doctrine of Russian Orthodox
Apostolic Succession
Bible – Composition of
Clergy – Qualification for
Eucharist – Significance of
Eucharist – Presence of Christ in
Eucharist – Distribution of
Holy Spirit
Marriage and Divorce
Mary – Assumption and Immaculate conception of
Mary – Position of
Pope – Authority of
Pope – Infallibility of
Purgatory
Sacraments
Sacraments – Effect of
Saints
Salvation
Scripture – Importance of
Worship and Liturgy
Eastern Orthodox – Eastern Byzantine empire – began forming alongside the “Roman Church” with the division of the Roman empire into east and west. The Eastern church – primarily Greek and North African, spoke a different language, enjoyed a different culture, and eventually held to a different governance ecclesiology over time. The emphasis of the primacy of see of Rome and its Bishop as possessing chief papal authority (Pope) the Eastern Orthodox church had already begun to operate independently of Rome. The final spark occurred with the addition of the filioque (from the Son) to the Nicene creed which led to sharp criticism of the Roman Church with Patriarch Michael Cerularius accusing Pope Leo IX of overstepping his authority. The Pope was incensed and sent Cardinal Humbert to deliver a Papal Bull excommunicating Cerularius. Cerularius in turn, excommunicated Cardinal Humbert, AND Pope Leo IX who sent him. Both East and West churches emerged separate and distinct and have not rejoined since. This has come to be known as the “Great Schism” of 1054 AD. However it should be called the Great Schism of the 3rd – 11th centuries!