He is very involved academically and as an expert member of several bodies including the Catholic-Orthodox Consultation (Fellowship of St.Alban & St.Sergius-Society of St.John Chrysostom) under the Chairmanship of Archbishop Bernard Longley and Metropolitan Kallistos Ware; Expert Consultor for Pro Oriente Foundation (Vienna); Advisory Board member HERA (EU) research grant entitled ‘Defining and Identifying Middle Eastern Christian Communities in Europe’ (DIMECCE)’ (2014-2016); On the Board of Advisers for the Catholic University of Louvain Centre of Eastern and Oriental Christianity (LOCEOC); Advisory Board of the Athens Centre Religious Pluralism in the Middle East established as a result of the International Conference on “Religious and Cultural Pluralism and Peaceful Coexistence in the Middle East” (Athens, 18-20/10/2015) organized by the Greek Government and Ministry of Foreign Affairs.
He has edited nearly twenty volumes or special issues of scholarly reviews. He is a member of the Editorial Board "International Journal of Asian Christianity" (Brill); and `One in Christ: Catholic Ecumenical Review’. He most recently Guest Edited a special issue of `The Journal of Eastern Christian Studies’, Vol. 67, no. 3-4, 2015 (2016) on "Eastern Catholics in Modern Europe.
He gave the Cambridge University Sermon (The Ramsden Preacher) for Pentecost 2015 on `Martyrdom and Ecumenism: Christianity in the Middle East Today’. He also recently gave lectures on `Matta el-Meskin: A Life of Kenosis’ International Conference “Matthew the Poor: A contemporary Desert Father’ 21-22 May 2016 at the Monastery of Bose (Italy); `The Desert Fathers Today: The Eremitical Tradition and Monasticism in the modern Middle East', The Zernov Lecture, 8 March 2016 held at Pusey House, University of Oxford; A series of Six lectures on `Eastern Christianity in the Middle East’ 28 January – 3 March 2016 at the Department of Continuing Education, University of Oxford; `The Question of the Jerusalem and the Holy Places Commission' at the international conference "Sacred Places and Heritage Protection from the Perspectives of International, Constitutional, Religious Law and Foreign Policy" 15-17 March 2016 at the Tantur Ecumenical Instiute (University of Notre Dame) in Jerusalem; and On `The Eastern Orthodox churches in the modern Middle East’ and `The Eastern Catholic churches in the modern Middle East’ Eastern Christianity Lecture Series: Regional conflicts, religious extremism and the future challenges facing Christian communities in the Middle East Today'November 2015 at Oriental Institute, University of Oxford. `The Eastern Catholic churches in the modern Middle East’ Eastern Christianity Lecture Series 17 November 2015 at Oriental Institute, University of Oxford; “Christianity in Syria: modern history and challenging context today”, Conference: `Christians in Syria and Iraq today: facing the challenges’, held at School of Oriental and African Studies, University of London University of London – April 2014; “The Question of the Holy Places under the British Mandate for Palestine”, Conference: `The Making of Jerusalem: Constructed Spaces and Historic Communities’, July 2014 Calouste Gulbenkian Foundation held at the Armenian Patriarchate of Jerusalem, the Old City; “The Jesuits, Eastern Christianity and the encounter with the Coptic Church in modern Egypt”, Conference: `For the Greater Glory of God and More Universal Good’ – June 2014 a celebration of the 400th Anniversary of the Foundation of Heythrop College and the Jesuit Educational , June 2014; `The Contributions of Ancient Christian Communities to the Contemporary Middle East` Conference title: University Religious Freedom project Christianity and Freedom: Historical and Contemporary Perspectives' December 2013 The Berkley Center for Religion, Peace, and World Affairs, Georgetown held at the Pontifical Urbaniana University (Rome).
He is often call to give expert comment in the media for example BBC World Service; Vatican Radio; France 24; BBC Sunday Programme; News Night; and published over twenty articles in `The Tablet’ (London).