 He was part of the Anglican–Orthodox Joint Doctrinal Discussions from 1982 to 1984, and a member of the Anglican–Roman Catholic International Commission (ARCIC) from 1985 to 1990.O'Donovan taught at Wycliffe Hall, Oxford (1972–1977), and at Wycliffe College, Toronto (1977–1982).He was Regius Professor of Moral and Pastoral Theology and Canon of Christ Church at the University of Oxford (1982–2006).