The doctrine of theosis has enjoyed a recent resurgence among varied theological traditions across the realms of historical, dogmatic, and exegetical theology. In Christification: A Lutheran Approach to Theosis, Jordan Cooper evaluates this teaching from a Lutheran perspective. He examines the teachings of the church fathers, the New Testament, and the Lutheran Confessional tradition in conversation with recent scholarship on theosis. Cooper proposes that the participationist soteriology of the early fathers expressed in terms of theosis is compatible with Luther's doctrine of forensic justification. The historic Lutheran tradition, Scripture, and the patristic sources do not limit soteriological discussions to legal terminology, but instead offer a multifaceted doctrine of salvation that encapsulates both participatory and forensic motifs. This is compared and contrasted with the development of the doctrine of deification in the Eastern tradition arising from the thought of Pseudo-Dionysius. Cooper argues that the doctrine of the earliest fathers--such as Irenaeus, Athanasius, and Justin--is primarily a Christological and economic reality defined as "Christification." This model of theosis is placed in contradistinction to later Neoplatonic forms of deification.

'Deification' refers to the transformation of believers into the likeness of God. Of course, Christian monotheism goes against any literal 'god making' of believers. Rather, the NT speaks of a transformation of mind, a metamorphosis of character, a redefinition of selfhood, and an imitation of God. Most of these passages are tantalizingly brief, and none spells out the concept in detail.

Theosis, or the principle of divine-human communion, sparks the theological imagination of Orthodox Christians and has been historically important to questions of political theology. In The Mystical as Political: Democracy and Non-Radical Orthodoxy, Aristotle Papanikolaou argues that a political theology grounded in the principle of divine-human communion must be one that unequivocally endorses a political community that is democratic in a way that structures itself around the modern liberal principles of freedom of religion, the protection of human rights, and church-state separation. Papanikolaou hopes to forge a non-radical Orthodox political theology that extends beyond a reflexive opposition to the West and a nostalgic return to a Byzantine-like unified political-religious culture. His exploration is prompted by two trends: the fall of communism in traditionally Orthodox countries has revealed an unpreparedness on the part of Orthodox Christianity to address the question of political theology in a way that is consistent with its core axiom of theosis; and recent Christian political theology, some of it evoking the notion of “deification,” has been critical of liberal democracy, implying a mutual incompatibility between a Christian worldview and that of modern liberal democracy. The first comprehensive treatment from an Orthodox theological perspective of the issue of the compatibility between Orthodoxy and liberal democracy, Papanikolaou’s is an affirmation that Orthodox support for liberal forms of democracy is justified within the framework of Orthodox understandings of God and the human person. His overtly theological approach shows that the basic principles of liberal democracy are not tied exclusively to the language and categories of Enlightenment philosophy and, so, are not inherently secular.

Theosis shapes contemporary Orthodox theology in two ways: positively and negatively. In the positive sense, contemporary Orthodox theologians made theosis the thread that bound together the various aspects of theology in a coherent whole and also interpreted patristic texts, which experienced a renaissance in the twentieth century, even in Orthodox theology. In the negative sense, contemporary theologians used theosis as a triumphalistic club to beat down Catholic and Protestant Christians, claiming that they rejected theosis in favor of either a rationalistic or fideistic approach to Christian life. The essays collected in this volume move beyond this East–West divide by examining the relation between faith, reason, and theosis from Orthodox, Catholic, and Protestant perspectives. A variety of themes are addressed, such as the nature–grace debate and the relation of philosophy to theology, through engagement with such diverse thinkers as Thomas Aquinas, John Wesley, Meister Eckhart, Dionysius the Areopagite, Symeon the New Theologian, Panayiotis Nellas, Vladimir Lossky, Martin Luther, Martin Heidegger, Sergius Bulgakov, John of the Cross, Delores Williams, Evagrius of Pontus, and Hans Urs von Balthasar. The essays in this book are situated within a current thinking on theosis that consists of a common, albeit minimalist, affirmation amidst the flow of differences. The authors in this volume contribute to the historical theological task of complicating the contemporary Orthodox narrative, but they also continue the “theological achievement” of thinking about theosis so that all Christian traditions may be challenged to stretch and shift their understanding of theosis even amidst an ecumenical celebration of the gift of participation in the life of God.

The doctrine of theosis means a salvation that is the deification of the saved. The saved actually become God. This unusual doctrine lies at the heart of Nicholas of Cusa's (1401-1464) mystical metaphysics. It is here examined for the first time as a theme in its own right, along with its implications for Cusanus's doctrine of God, his theological anthropology, and his epistemology.

Norman Russell's innovative study offers fresh insights into the developing concepts of theosis across Eastern and Western traditions.

Deification penetrates all spheres of human existence, and can be seen as an answer to most pending ultimate questions. It is essentially practical in its manifestation and uplifting in its content, but nevertheless, always evasive and arcane in itscomprehension. Aimed both at those who are already students of theosis and at those who are looking for an introductory text.