Education:
- PhD candidate in Studies in Religion (University of Sydney, 2021-)
- Doctor of Theology (University of Bucharest, 2000)
- Bachelor of Theology (University of Bucharest, 1993)
Tertiary teaching experience:
- Supervisor for Higher Degrees by Research (since 2008)
- Associate Professor of Theology, Sydney College of Divinity (2021-), teaching for Nisibis Assyrian Theological College and St Cyril’s Coptic Orthodox Theological College
- Senior Lecturer of Theology, Sydney College of Divinity (2010-2021), teaching for St Cyril’s Coptic Orthodox Theological College and St Andrew’s Greek Orthodox Theological College
- Lecturer of Theology, Sydney College of Divinity (2005-2010), teaching for St Andrew’s Greek Orthodox Theological College
- Assistant Lecturer of Systematic Theology, Faculty of Orthodox Theology, University of Bucharest (1995-2004)
- Lecturer of Theology and Patristics, International Academy for the Study of the History of Religions and Culture, Bucharest (2001-2003)
- Visiting Lecturer of Fundamental Theology, Faculty of Orthodox Theology, University of Craiova, (2002)
Publications:
His full list of publications is available here.
Books
- Costache, D. Nature Contemplation in Clement of Alexandria: Elements of the Method. London and New York: Routledge, 2025.
- Costache, D., and G. F. Lewis. A New Copernican Turn: Contemporary Cosmology, the Self, and Orthodox Science-Engaged Theology. London and New York: Routledge, 2024.
- Costache, D. Humankind and the Cosmos: Early Christian Representations. Leiden and Boston: Brill, 2021.
- Neil, B., D. Costache, and K. Wagner. Dreams, Virtue and Divine Knowledge in Early Christian Egypt. Cambridge University Press, 2019.
Journal articles
- Costache, D. ‘A Note on the Codex Angus and Its Use.’ The Journal of Ecclesiastical History, published online (first view, 2025): 1-16.
- Costache, D. ‘Astral Iconography and the Byzantine Study of the Heavens.’ De Medio Aevo 13:2 (2024): 321-351.
- de Grijs, R., and D. Costache. ‘The Cosmology of David Bohm: Scientific and Theological Significance.’ Theology and Science 22:1 (2024) 204-220.
- Costache, D. ‘Patristic and Neopatristic Antecedents of Scientifically Engaged Theology.’ St Vladimir’s Theological Quarterly 67:1-2 (2023): 115-145.
Book chapters
- Costache, D. ‘Abraham, the Contemplation of Nature, and Divine Vision in Clement of Alexandria.’ In: N. Tanase, M. Portaru, and D. Lemeni (eds). Knowing God in Light: Theophany and Language. Forum Orthodoxe Theologie 23. Vienna: LIT Verlag, 2024: 127-144.
- Costache, D. ‘Athanasius on Deacons and the Diaconate.’ In: B. J. Koet, E. Murphy, and E. Ryökäs (eds). Deacons and Diakonia in Late Antiquity: The Third Century Onwards. Tübingen: Mohr Siebeck, 2024: 64-77.
- Costache, D. ‘Burning Hearts: Emmaus as Realised Eschatology in the Philokalic Tradition.’ In: P. G. Bolt and S. Kim (eds). God’s Grace Inscribed on the Human Heart. Macquarie Park: SCD Press, 2022: 61-78.
- Costache, D. ‘Theological Anthropology Today: Panayiotis Nellas’s Contribution.’ In: K. Tampakis and H. Ventis (eds). Orthodox Christianity and Modern Science: Past, Present and Future. Turnhout: Brepols Publishers, 2022: 167-182.
Ecclesiastical appointments:
- Parish priest (part time), Saint Gregory the Theologian’s Romanian Orthodox Parish (Sydney’s north), Romanian Orthodox Diocese of Australia and New Zealand (2017-)
- Elevated to the office of protopresbyter of the Greek Orthodox Archdiocese of Australia (2013)
- Clergyman of the Greek Orthodox Archdiocese of Australia (2008-2017)
- Parish priest at Romanian Orthodox parish ‘Dormition of the Theotokos’ (‘Sfanta Maria’) in Sydney, Romanian Orthodox Diocese of Australia and New Zealand (2004-2008)
- Assistant priest at parish of Saint Basil in Calea Victoriei, Archdiocese of Bucharest (2001-2004)
- Ordained presbyter of the Romanian Orthodox Archdiocese of Bucharest (24 May 2001)
- Deacon at parish of Domnita Balasa, Archdiocese of Bucharest (1997-2001)
- Ordained deacon of the Romanian Orthodox Archdiocese of Bucharest (21 January 1997)
