The word koinonia has gained prominence in recent ecumenical discussions. In this original and substantial work Lorelei Fuchs proposes the theological idea of koinonia, commonly translated as "communion" or "fellowship," as the key to moving fractured churches toward a future unity. Fuchs challenges churches to move beyond mere dialogue and to apply ecumenical insights at the local level. She begins by relating the exegetical meaning of koinonia to its ecumenical meaning, tracing the place of koinonia both within the churches and between the churches. She then examines the concept of koinonia in the extensive and fruitful dialogues that have taken place between Lutherans, Anglicans, and Roman Catholics, finally articulating a "symbolic competence for communionality" that provides a rich and workable way forward for church unity at all levels. Encompassing the latest in ecumenical thought, Koinonia and the Quest for an Ecumenical Ecclesiology provides a broad, thoughtful framework for realizing Christ's prayer "that all may be one . . . so that the world may believe."

Receptive Ecumenism asks not what other churches can learn from us, but 'what can we learn and receive with integrity from our ecclesial others?' Since the publication of Receptive Ecumenism and the Call to Catholic Learning: Exploring a Way for Contemporary Ecumenism (OUP, 2008), this fresh ecumenical strategy has been adopted, critiqued, and developed in different Christian traditions, and in local, national, and international settings, including the most recent bilateral dialogue of the Anglican-Roman Catholic International Commission (ARCIC III). The thirty-eight chapters in this new volume, by academics, church leaders, and ecumenical practitioners who have adopted and adapted Receptive Ecumenism in various ecclesial and cultural contexts, show how Receptive Ecumenism has grown and matured. Part One demonstrates how Receptive Ecumenism itself is capable of being received with integrity into very different ecclesiologies and ecclesial traditions. In Part Two, this approach to transformative ecumenical learning is applied to some recurrent ecclesial problems, such as the understanding and practice of ministry, revealing new insights and practical opportunities. Part Three examines the potential and challenges for Receptive Ecumenism in different international settings. Part Four draws on scripture, hermeneutics, and pneumatology to offer critical reflection on how Receptive Ecumenism itself implements transformative ecclesial learning. Addressing the 70th Anniversary of the World Council of Churches, Archbishop Justin Welby, said that 'One of the most important of recent ecumenical developments has been the concept of Receptive Ecumenism'. This volume provides an indispensable point of reference for understanding and applying that concept in the life of the Christian churches today.

What does episcopal fraternity and communio look like? This central question is explored through the erudition and experience of Archbishop Anthony Fisher, Catholic Archbishop of Sydney, Australia. Unity in Christ, based upon a series of addresses given to the United States Conference of Catholic Bishops (USCCB) at their Special Assembly in 2022, delves into the themes associated with episcopal unity. By surveying the Christian tradition, beginning with the scriptures and then through various periods (Apostolic generation, patristic, scholastic, Vatican II, recent post Vatican II developments such as synodality) a coherent picture of episcopal togetherness is presented. What becomes clear is that unity among Christ's disciples and their successors is not simply an ideal but rather a constitutive element of their office. They are called to love as Christ loved, expressed above all through genuine friendship with one another. The consequences of this fraternity and communio have implications in areas such as spirituality, preaching and fraternal correction, among others. This second feature, the implications of episcopal fraternity and communio, are explored through Archbishop Fisher's twenty years of experience as a bishop of the Catholic Church. By providing concrete examples of lived episcopal fraternity and communio, Fisher offers a glimpse into both the challenges and fruits of living out Christ's call that "they might all be one" (Jn 17:21).

This book innovatively explores the notion of koinonia for understanding the nature and function of the Church. Since the Scriptures assert that the Church is the Church of God, God's communal mode of existence is looked at namely, God who is a communion of three hypostases relating to one another in an interpenetrating koinonia of infinite love as a way of understanding the very being of the church as communion. Such a notion of koinonia, far from having anything to do with socio-political understandings, suggests that it is a foundational gift bestowed from above to the world as the solution par excellence to the impasse of isolationism. More often than not, however, such an ecclesiology of communion has not taken seriously the historical reality of the Church living within the fallen world along with its ceaseless temptations, divisions and even sins in history. In this way, it becomes apparent that a dialectic needs to be acknowledged in the notion of communion as both foundational gift from God, and yet one still to be fully realised. Accordingly, this work shows that the Church is not only as the gift of God's miraculous presence here on earth. The Church is also constantly striving to exist epicletically until such time as it will fully experience the final consummation in Gods eschatological kingdom. An examination of this double dimensionality of the Church is undertaken in order to assess if this is in line with the Scriptural witness of the ekklesia. Having established the gift-goal dialectic in the notion of koinonia in the New Testament Church, the study then traces the trajectory of this dynamic approach to koinonia in the Churchs worship and authoritative structures. This promises to cast both a deeper light on, and a more realistic solution to ecclesiological problems within the life of the Church today, allowing for the Churchs constant renewal.

Ecumenism: A Guide for the Perplexed is a comprehensive introduction to the methods, achievements, and future prospects of the modern ecumenical movement. The authors begin the volume by charting out a serviceable definition of ecumenism, a term that has long been a source of confusion for students of theology and church history. They review the chronology of the modern ecumenical movement and highlight the major events, figures, accomplishments, and impasses. This historical survey is followed by critical examinations of three significant challenges for contemporary ecumenical theology and practice. Along the way, the authors provide commentary upon the difficulties and prospects that the ecumenical movement might anticipate as it enters this new millennium.

Questions surrounding the understanding of "communion" are a significant feature of much contemporary ecclesiology, but their prominence calls attention to wider questions regarding ecclesiological method. Brian Flanagan addresses the questions of how to characterize a systematic ecclesiology and the possibility of a systematic communion ecclesiology through an investigation of the concept of communion in the work of Jean-Marie Tillard, OP. Tillard's theology is noted as the most prominent Roman Catholic communion ecclesiology. Flanagan argues that Tillard contributes to systematic ecclesiology by defining the concept of communion in relation to Christology, soteriology, and theological anthropology, thereby framing an answer to the contemporary question of ecclesial unity and diversity. The book also assesses the danger of idealism in Tillard's thought, and suggests that further engagement with social scientific study of the church will help strengthen, nuance, and critique Tillard's idea of communion.

What is the church? In this thoroughly revised and updated text, Veli-Matti Kärkkäinen provides a wide-ranging survey of ecclesiology in the midst of rapid developments and new horizons. This unique primer not only orients readers to biblical, historical, and contemporary ecclesiologies but also highlights contextual and global perspectives.