TRADITION Post-Chalcedonian & Medieval (451–1517 AD) 431 AD – Present Oriental Orthodox (Post-Chalcedonian)

Church of the East (East Syriac / Persian Church)

Ancient apostolic church of Mesopotamia, Persia, India, and China

The Church of the East (historically called the Nestorian Church or East Syriac Church) was the great missionary communion that expanded beyond the borders of the Roman Empire into Sasanian Persia, Central Asia, India, and Tang Dynasty China (as recorded on the Xi'an Stele in 781 AD).

Geographical Center: Seleucia-Ctesiphon, Mesopotamia, Persia, Silk Road Historical Catalyst: Council of Ephesus (431 AD)

Historical Context & Significance

Severing ecclesiastical ties with the Roman West after rejecting the Council of Ephesus (431 AD), the Church of the East preserved the theological legacy of Theodore of Mopsuestia and the East Syriac liturgical rite of Saints Addai and Mari, flourishing until devastated by the conquests of Timur in the 14th century.

Genealogical Lineage & Splits

Parent Lineage (Split From)

Antiochian Apostolic Community

The Antiochian Apostolic Church was the primary missionary base for Paul and Barnabas, marked by the breakthrough integration of Jewish and Gentile believers in common table fellowship and the first place where disciples were called 'Christians' (Christianoi).

Separated in 431 AD

Theological & Hermeneutical Coordinates

Soteriology Two Natures Operating in Distinct Moral Harmony for Human Restoration
Hermeneutic East Syriac Historical-Literal Exegesis (Theodore of Mopsuestia)
Ecclesiology & Sacraments Patriarch-Catholicos of Seleucia-Ctesiphon and Liturgy of Addai and Mari
Eschatology Eschatological World of Immortality and Light

Primary Scripture Proof-Texts

Key biblical passages central to this tradition's exegesis and historical debates.

Connected Theological Perspectives & Debates

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