John Zizioulas

Zizioulas' ecclesiology was first developed in his doctoral dissertation, subsequently published in English as Eucharist, Bishop, Church. Here Metropolitan John develops critically the eucharistic ecclesiology of Nikolai Afanassieff. He accepts Afanassieff's principal contention that the Church is to be understood in terms of the Eucharist. However, he criticises Afanassief's understanding as overly congregational and insufficiently episcopal in its emphasis. Finally, Zizioulas advocates an episcopocentric understanding of Church structure, understanding the Bishop primarily as the president of the Divine Liturgy and the Eucharistic community.

Zizioulas worked on the theology of the person, appealing to the work of Irenaeus and Maximus the Confessor. The primary focus of his work was to develop his own ontology of personhood derived from an extensive investigation of Greek philosophy, patristic era writings and modern rationalist philosophy.

He argues that full humanity is achieved only as person so that they may participate (koinonia) in the Trinitarian life of God. However, an essential component of the ontology of personhood is the freedom to self-affirm the participation in relationship. He continues that man initially exists as a biological hypostasis, constrained as to the types of relationships one can have (biological) and to the eventual end of this type of being - death.

He makes use of existentialist philosophers and novelists, notably the French absurdist writer Albert Camus, to show that the only type of ontological freedom in the biological hypostasis is the choice to commit suicide. He claims that Baptism constitutes an ontological change in the human, making them an ecclesial hypostasis, or a person. This rebirth 'from above' gives new ontological freedom as it is not constrained by the limits of biological existence. Such ecclesial being is eschatological, meaning it is a paradoxical 'now,' but 'not yet.' The completion of this rebirth from above is the day of resurrection when the body will no longer be subject to death.

• 'Ἡ ἑνότης τῆς Ἐκκλησίας ἐν τῇ Θείᾳ Εὐχαριστίᾳ καί τῷ Ἐπισκόπῳ κατά τούς τρεῖς πρώτους αἰώνας." (En Athi̲nais, 1965). Doctoral Dissertation. Published in French translation as "L' Eucharistie, L'évêque Et L'eglise Durant Les Trois Premiers Siècles." 2nd ed. Translated by Jean-Louis Palierne. (Paris: Desclée De Brouwer, 1994). Published in English translation as "Eucharist, Bishop, Church" (see below).
• L'Être ecclésial (Paris: Labor et Fides, 1981). ISBN 978-2-8309-0180-1. Published in English translation as "Being as Communion" (see below).
• H κτίση ως Eυχαριστία, Θεολογική προσέγγιση στο πρόβλημα της οικολογίας [Creation as Eucharist: a Theological approach to a problem of ecology] (Athens: Akritas, 1992). ISBN 978-960-7006-98-1. This work is based on lectures previously delivered in English. Available in three parts: King's Theological Review vol. 12, no. 1 (1989): 1-5, no. 2 (1989): 41-45, vol. 13, no. 1 (1990): 1-5.
• Being as Communion: Studies in Personhood and the Church (Crestwood, NY: St Vladimir's Seminary Press, 1997). ISBN 978-0-88141-029-7.
• Eucharist, Bishop, Church: The Unity of the Church in the Divine Eucharist and the Bishop During the First Three Centuries (Brookline, MA: Holy Cross, 2001). ISBN 978-1-885652-51-5.
• Eλληνισμός και Xριστιανισμός, η συνάντηση των δύο κόσμων [Hellenism and Christianity: The meeting of two worlds] (Athens: ApostolikeDiakonia, 2003).
• Communion & Otherness: Further Studies in Personhood and the Church (London: T & T Clark, 2007). ISBN 978-0-567-03148-8; translated into Dutch by Hildegard C. Koetsveld OSB (Middelburg: Skandalon, 2019). ISBN 978-94-92183-82-8.
• Lectures in Christian Dogmatics (London: T&T Clark, 2009). ISBN 978-0-567-03315-4.
• The One and The Many: Studies on God, Man, the Church, and the World Today (Sebastian Press, 2010) ISBN 978-0-9719505-4-2.
• Remembering the Future: An Eschatological Ontology (London: T&T Clark, 2012). ISBN 978-0-567-03235-5.

There are extensive bibliographies devoted to Zizioulas’ published works in various languages in:

• McPartlan, Paul. The Eucharist Makes the Church: Henri De Lubac and John Zizioulas in Dialogue. Edinburgh: T&T Clark, 1993.
• Papanikolaou, Aristotle. Being with God: Trinity, Apophaticism, and Divine-Human Communion. Notre Dame, IN: University of Notre Dame Press, 2006.
• Malecki, Roman. Kosciol jako wspolnota. Dogmatyczno-ekumeniczne studium eklezjologii Johna Zizioulasa (In English: The Church as Communion. A Dogmatic and Ecumenical Study of Ecclesiology of John Zizioulas). Lublin: RW KUL, 2000.

• Alan Brown, "On the Criticism of 'Being as Communion' in Anglophone Orthodox Theology", in Douglas Knight (ed.) The Theology of John Zizioulas: Personhood and the Church (Ashgate, 2006) defends Zizioulas against several of the polemical rejections of his theological ontology.
• Aristotle Papanikolaou. Being with God: Trinity, Apophaticism, and Divine-Human Communion (Notre Dame, IN: University of Notre Dame Press, 2006).
• Lucian Turcescu, "Person versus Individual and Other Modern Misreadings of Gregory of Nyssa", Modern Theology 18, no. 4 (October 2002): 527-539, is a polemic against Zizioulas' use of the Cappadocian Fathers, especially St Gregory of Nyssa.