Associate Professor Doru Costache

Associate Professor in Theology (Patristic Studies), St Cyril's Coptic Orthodox Theological College
BTh, University of Bucharest ThD (Patristics), University of Bucharest

Protopresbyter Associate Professor Doru Costache was trained at the Radu Vodă Seminary, Bucharest, Romania (1983-1988). He has undertaken undergraduate studies (1989-1993) and doctoral studies (1995-1999) in Orthodox theology at the University of Bucharest. His doctoral thesis, publicly defended in March 2000, was on the anthropic cosmological principle interpreted from the viewpoint of a patristic theologian, Saint Maximus the Confessor, and a neopatristic theologian, Father Dumitru Stăniloae. He has over twenty years of tertiary teaching experience (the University of Bucharest, 1995-2004; the Sydney College of Divinity, 2005-to date), and was the Durham International Senior Research Fellow of Institute of Advanced Study, the University of Durham, Epiphany Term, 2018. He is an Honorary Associate of the Department of Studies in Religion, the School of Letters, Art and Media, the Faculty of Arts and Social Sciences at the University of Sydney.

Humankind and the Cosmos: Early Christian Representations (2021) is Doru’s latest book published by Brill. He is the co-author of Introducere în Dogmatica Ortodoxă (1997), Știință și Theologie: Preliminarii pentru Dialog (2001), Sfinții Părinți despre Originile și Destinul Cosmosului și Omului (2003), and Dreams, Virtue and Divine Knowledge in Early Christian Egypt(2019). He is the co-editor of Well-Being, Personal Wholeness and the Social Fabric (2017).

Doru was ordained to the diaconate in January 1997 and to the priesthood in May 2001, and is married with one daughter. He is the Protopresbyter of the Romanian Orthodox Diocese of Australia and New Zealand and a minister at St Gregory the Theologian’s Mission in Mona Vale NSW.

Areas of Interest

  • Early Christian representations of reality
  • Experiences of holiness
  • Science, ethics, and theology
  • Traditional interpretations of Genesis 1-3
  • Transdisciplinarity
  • Wellbeing

Research Strengths

  • Patristic era
  • Patristic theology

Currently working on

Currently, Costache participates in project Science and Orthodoxy around the World/SOW (2020-2023) hosted by the Institute of Historical Research at the National Hellenic Research Foundation (Athens), recipient of a grant from the Templeton World Charity Foundation ( In that capacity, together with Dr Alexei Nesteruk (University of Portsmouth, UK) he cochairs the Cosmology group, reuniting researchers from three continents. Alongside two chapters he writes with two Sydney-based scientists, he will coedit the volume which will reunite the contributions of the group, to be published in 2023. In parallel, he prepares for publication a monograph based on his unpublished doctoral thesis (Bucharest 2000), on Saint Maximus the Confessor’s worldview. As the ISCAST Research Director (May 2021), he implements an ambitious programme of relaunching the research activity of the organisation (


Since 2020 Fellow of ISSR International Society for Science & Religion
Since 2020 Fellow of ISCAST Christians in Science and Technology
2021-2022 Selby Old Fellow in Religious History of the Orthodox Christian Faith at the University of Sydney



2021 Humankind and the Cosmos: Early Christian Representations
Brill 2021
2019 Dreams, Virtue and Divine Knowledge in Early Christian Egypt
Authors - Bronwen Neil, Doru Costache, Kevin Wagner, Cambridge University Press 2019
2019 Reading Scripture in the Orthodox Church: The Festal Cycle
AIOCS 2019

Book Chapters and Refereed Articles

2020 ‘A Note on Evagrius’ Cosmological and Metaphysical Statements
In: The Journal of Theological Studies 71:2 (2020) 718-730.
2020 Maximus the Confessor and John Damascene’s cosmology
In: John Slattery (ed). The T&T Clark Handbook of Christian Theology and the Modern Sciences (Bloomsbury/T&T Clark, 2020) 81-91.
2020 Andrew of Crete’s Great Canon, Byzantine Hermeneutics, and Genesis 1-3
In: Andrew Mellas and Sarah Gador-Whyte (eds). Hymns, Homilies and Hermeneutics in Byzantium. Byzantina Australiensia 25 (Leuven and Boston: Brill, 2020) 67-85.
2019 The Orthodox Doctrine of Creation in the Age of Science
In: Journal of Orthodox Christian Studies Vol 2 (Johns Hopkins University Press, 2019) 43-64.
2019 A Theology of the World: Dumitru Stăniloae, the Traditional Worldview, and Contemporary Cosmology
In: Vasilios N. Makrides and Gayle Woloschak (eds). Orthodox Christianity and Modern Science: Tensions, Ambiguities, Potential. Science and Orthodox Christianity 1 (Turnhout: Brepols Publishers, 2019) 205-22.
2019 Christian Gnosis: From Clement the Alexandrian to John Damascene
In: Garry W. Trompf, Gunner B. Mikkelsen, and Jay Johnston (eds). The Gnostic World (Routledge Worlds London and New York: Routledge, 2019) 259-70.
2019 Byzantine and Modern Orthodox Gnosis: from the Eleventh to the Twenty-First century
In: Garry W. Trompf, Gunner B. Mikkelsen, and Jay Johnston (eds). The Gnostic World (Routledge Worlds London and New York: Routledge, 2019) 426-35.

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