Donald Senior, C.P., is president of the Catholic Theological Union in Chicago, where he has taught the New Testament since 1972. A Roman Catholic priest of the Passionist order, Fr. Senior has served on the Pontifical Biblical Commission since Pope John Paul II named him to it in 2001. In addition to having written books and articles too numerous to list, Fr. Senior is general editor of The Bible Today and The Catholic Study Bible, as well as coeditor of the 22-volume commentary New Testament Message. He earned his doctorate in New Testament Studies from the University of Louvain, Belgium, and completed further graduate studies at Hebrew Union College and Harvard University. In 1994, the Catholic Library Association of America gave him its Jerome Award for outstanding scholarship. In 1996, the National Catholic Education Association awarded him the Bishop Loras Lane Award for his outstanding contribution to theological education.

John W. O’Malley, a Roman Catholic priest and member of the Society of Jesus, is currently University Professor in the Theology Department of Georgetown University, Washington, DC. He holds a Ph.D. in history from Harvard University. His specialty is the religious culture of early modern Europe. Father O’Malley has written and edited a number of books, several of which have won best-book awards. For instance, The First Jesuits, perhaps his best known work, received both the Jacques Barzun Prize for Cultural History from the American Philosophical Society and the Philip Schaff Prize from the American Society for Church History. It has been translated into ten languages. In 2008, he published with Harvard University Press What Happened at Vatican II, which is a companion to his book from the same press, Trent: What Happened at the Council (2012).

Father O’Malley has lectured widely in Europe and North America to both professional and general audiences. He is past-president of the Renaissance Society of America and the American Catholic Historical Association. He holds the Johannes Quasten Medal from The Catholic University of America for distinguished service in religious studies. In 1995 he was elected to the American Academy of Arts and Sciences, in 1997 to the American Philosophical Society, and in 2001 to the Accademia di san Carlo, Ambrosian Library, Milan. He holds lifetime achievement awards from the Society for Italian Historical Studies, the Renaissance Society of America, and the American Catholic Historical Association.

Fr. Brian McDermott, S.J. is a Catholic priest and a member of the Jesuits, the Society of Jesus. He is currently the Rector of the Jesuit Community of Loyola University Maryland, Research Professor in the Department of Theology and Affiliate Professor in the Department of Pastoral Counseling. He received his doctorate in systematic theology from the University of Nijmegen, The Netherlands, in 1973. From 1973 to 2000, he was a member of the faculty of Weston Jesuit School of Theology in Cambridge, Mass., serving as academic dean for eight of those years. Fr. McDermott is the author of two books, What are They Saying About the Grace of Christ? and Word Become Flesh: Dimensions of Christology as well as numerous articles and reviews.

Joseph Tetlow, S.J. is the director of Montserrat Jesuit Retreat House, where he gives retreats, workshops, and writes. He spent several years in Rome as head of the Jesuit General's Secretariat for Ignatian Spirituality, guiding the efforts of 250 Jesuit retreat houses. He was also a professor of Theology at St. Louis University and an associate editor of America Magazine. He has served on the Board of Directors of SLU, the University of Seattle, and Harvard's Institute for Educational Management.

Fr. Tetlow has written numerous articles and books. Among them are Ignatius Loyola: Spiritual Exercises, Choosing Christ in the World, Making Choices in Christ, and a commentary on the full cycle of Sunday readings in America.

Howard Gray, S.J., is presently the Assistant to the President for Special Projects at Georgetown University. Prior to this position, he has served in a number of leadership positions within the Jesuit community, including Provincial Superior, Formation Director, Tertian Director and Rector of university and formation houses. He has lectured nationally and internationally on Ignatian spirituality. His has written extensively on Ignatian spirituality, ministry and the apostolic mission of Jesuit high school and universities. He is a well-known director of Ignatian retreats in the USA, East Africa and East Asia. He earned a bachelor's degree in English and classics, a licentiate in philosophy and a licentiate in sacred theology from Loyola University of Chicago, and a doctorate in English from the University of Wisconsin.Fr. Gray has received five honorary degrees, the Georgetown Bi-Centennial Medal, the Jesuit Volunteer Corps Award and the Xavier University's Leadership Medallion. He served as the Vice President of the Major Superiors of Men from 1985-1988 and on the Papal Visitation of Seminaries in the U.S. from 1981-1987.