Protopresbyter Dr 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, and the University of Sydney. 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.