God ad intra and God ad extra

The Relationship between the Immanent Trinity and the Economic Trinity as Reflected in the Works of John Zizioulas and Dumitru Stăniloae

Authors

DOI:

https://doi.org/10.63394/6cafyv14

Keywords:

John Zizioulas, Dumitru Stăniloae, theologia and oikonomia, monarchy of the Father, relations of origin, Filioque, apophatic theology, self-revelation, salvation history, deification, Orthodox–Catholic dialogue

Abstract

This article compares the relationship between the immanent and economic Trinity in John Zizioulas and Dumitru Stăniloae. Although they did not explicitly engage one another’s work, their approaches share a patristic inheritance while revealing distinctive emphases. After outlining the Orthodox distinction between God ad intra and God ad extra, the article examines divine transcendence, freedom, and communion. Zizioulas stresses the irreducibility of God’s eternal life to salvation history, safeguarding divine freedom against historical necessity. Stăniloae maintains this distinction while exploring how eternal Trinitarian communion is manifested in history, particularly through the relationship between the Son and the Spirit. Their difference concerns theological priorities rather than an opposition between separation and identity. Both affirm that the God revealed in history is the eternal Triune God, whose mystery revelation discloses without exhausting.

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Author Biography

  • Augustin (Viorel) Coman, KU Leuven, Faculty of Theology and Religious Studies

    Augustin Viorel Coman is an Archimandrite of the Romanian Patriarchate, Patriarchal Counsellor and Coordinator of the Department for Christian and Interreligious Relations and Romanian Communities Abroad within the Patriarchal Administration. He also serves as an Assistant Professor of Dogmatic Theology at "Patriarch Justinian" Faculty of Orthodox Theology, University of Bucharest. Dr. Coman is also a voluntary research associate of the Faculty of Theology and Religious Studies
    He holds a PhD in Theology from KU Leuven, Belgium, where he also worked as a FWO postdoctoral researcher between 2017 and 2023. 
    From 2018 to 2022, he served as Secretary of Societas Oecumenica (The European Society for Ecumenical Research). Since January 2023, he has been Co-Chair of the Ecumenical Dialogue Group within the International Orthodox Theological Association. In 2018, he became a member of the European Academy of Religion.
    Dr. Coman is the author of numerous theological works and studies published by prestigious academic publishers in Europe and the United States, in English, Romanian, French, and Spanish. His main areas of research are Ecclesiology, Trinitarian theology, Ecumenism, Orthodox-Catholic Relationships, Modern Orthodox Theology, Neo-patristic movement, Dumitru Staniloae, and André Scrima.

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Augustin (Viorel) Coman - God ad intra and God ad extra: The Relationship between the Immanent Trinity and the Economic Trinity as Reflected in the Works of John Zizioulas and Dumitru Stăniloae

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Received

2026-02-21

Revised

2026-09-16

Accepted

2026-09-24

Published

2026-11-10

How to Cite

Coman, Augustin Viorel. 2026. “God Ad Intra and God Ad Extra: The Relationship Between the Immanent Trinity and the Economic Trinity As Reflected in the Works of John Zizioulas and Dumitru Stăniloae”. OmegAlpha: Journal for the Study of Metropolitan John Zizioulas’ Theology 2 (2): 59–85. https://doi.org/10.63394/6cafyv14.

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