Apostolikos Thronos: Rival Accounts of Roman Primacy in Eusebius and Athanasius

The nature of Roman primacy and the extent of the teaching and jurisdictional authority of the pope have long been areas of misunderstanding and disagreement between the Catholic Church and the Orthodox Churches of the East. Just as the Petrine office of the Roman pontiff admits of historical unfolding, so, too, do differing theological accounts of this office, and the period of the fourth-century Arian controversy marks a significant stage in the development of both. D. Vincent Twomey’s Apostolikos Thronos exposes two divergent Eastern accounts of Roman primacy in the writings of the rival fourth-century bishops Eusebius of Caesarea and Athanasius of Alexandria. In the first part, Twomey examines successive versions of Eusebius’ Church History, and he shows how Eusebius comes to replace his earlier apostolic ecclesiology with a novel imperial ecclesiology tied to Constantine’s embrace of Christianity, a shift that both reflects and contributes to a lasting change in the consciousness of the East toward the See of Rome. The second part explores the perspective on Roman primacy found in Athanasius’ historical and apologetic works, penned in response to his deposition from the See of Alexandria, which reveal how Athanasius preserves the traditional apostolic ecclesiology of the early Eusebius and also displays a deepening theological appreciation for the pre-eminence of the church and bishop of Rome, anticipating later articulations of the theology of the papacy. Vincent Twomey, SVD, earned his PhD in theology at the University of Regensburg under the supervision of Joseph Ratzinger. He is Professor Emeritus of Moral Theology at St. Patrick’s Pontifical University, Maynooth, where in 1986 he co-founded the Patristic Symposium to promote patristic studies in Ireland. Fr. Twomey previously held teaching positions at the Regional Seminary in Papua New Guinea and the Solomon Islands, and at the Divine Word Missionaries Faculty of Theology at St. Gabriel’s in Mödling, Austria. He also served as Visiting Professor at the University of Fribourg and Visiting Scholar at Seton Hall University. He is the former editor of the Irish Theological Quarterly and the co-editor of several volumes of the proceedings of the International Patristic Conference, Maynooth.

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