Petros Vassiliadis is Professor Emeritus of the Aristotle University of Thessaloniki, Greece, and President of the Center of Ecumenical, Missiological and Environmental Studies (CEMES), and the World Conference of Associations of Theological Institutions (WOCATI). His publications include The Q-Document Hypothesis (1977); Cross and Salvation: The Soteriological Background of the Pauline Teaching of the Cross (1983); Eucharist and Witness: Orthodox Perspectives on Unity and Mission of the Church (1998); Studies in Q (1999); Paul: Trajectories into his Theology (2005); Lex Orandi: Liturgical Theology and Liturgical Renewal (2005); Unity and Witness: Handbook on Inter-Religious Dialogue (2007); and Orthodox Perspectives on Mission (2013).Niki Papageorgiou is Professor of Sociology of Religion and Ethics at the Theological School of the Aristotle University of Thessaloniki, Greece, having received her PhD from the Department of Ethics and Sociology of the Theological School of the Roman Catholic University of Louvain-La-Neuve, Belgium. She is a founding member and vice-chairwoman of the Hellenic Society for the Study of Religions (SSEASR), and a member of the European Society of Women (SESR), the Société Internationale de Sociologie des Religions (SISR), and the European Society of Women Theological Research (ESWTR).Eleni Kasselouri-Hatzivassiliadi is Lecturer at the Hellenic Open University, Greece, and a Research and Studies Officer of the Greek National Center for Public Administration and Local Government. Her publications include Women’s Voices and Visions for the Church. Reflections from Orthodox Women (2006) and Many Women Were Also There: The Participation of Orthodox Women in the Ecumenical Movement. Past, Present, Future, (2011).