I address three questions. First, how do Eastern theologians configure the way the incarnation is rendered as God’s original intention, and how significant is that insight? The answer is that this is central to their portrayal of God’s purpose. Second, what precisely is God’s purpose in the incarnation? The answer lies in the notion of deification, our being made divine, a concept pivotal to Eastern theology – and yet one that seems in significant respects problematic. Third, are there ways in which Eastern theologians portray God’s purpose that are less problematic, yet equally integral to their notion of God’s original and constant purpose? The answer is, yes there are. I conclude with three key motifs that I find more transferable yet nonetheless wholly authentic to the Orthodox theological imagination: communion, participation and transfiguration.

The book comes in three parts. In Part I I set out the full extent of incarnational theology, in terms of abundance, relationship, transfiguration and blessing. I explain seven ways in which my account seeks to correct the ways conventional theology departs from a truly theocentric approach. This is a story about God (rather than us). It is a story about Jesus (rather than overcoming sin and death). It is a story of abundance (not deficit). It is a story of God’s sovereignty (not rules God must obey). It is a story about Jesus from the beginning (not just from the annunciation). It is a story of flourishing (not inhibition). It is a story in which God’s means and ends are identical.

This chapter articulates God’s purpose, which could be identified with the term ‘election’, but which here I break down into three themes – incarnation, creation and eschatology. If God’s character is not to change, God’s way of bringing about that purpose must be entirely consistent with the nature of that purpose. Thus the incarnation is both the means and the end of God’s purpose. God’s ultimate purpose is for us to be with God: God achieves that purpose by being with us. The incarnation is God being with us: the eschaton is us being with God. Creation is incarnational, because the purpose of creation is to be the theatre of God’s relationship with humankind, and because Jesus demonstrates what creation is and where it belongs in the story of God. The gospels portray the incarnate Jesus as the one through whom creation turns into heaven, and the flaws in existence are overwhelmed by the foretaste of essence.

Physicalism was a logical development of fourth-century theology, but the fifth-century triumph of the creationist ensoulment model had the effect of making physicalist soteriology a much less useful theological tool by narrowing the possible physicalist effects of the incarnation to the body only (and not the soul). The disappearance of physicalism is one manifestation of the detrimental effect the creationist ensoulment model had on theological conceptions of human solidarity through its sharp division between body and soul that rendered “human nature” a category that no longer had logical relevance as regards articulations of fall or redemption. The renewed interest in both human solidarity and “human nature” as a meaningful soteriological category – manifest most clearly in the current explosion of interest in deification studies – emphasizes the need for a new curation of the Christian tradition that would both restore the category of human nature to soteriological usefulness and would recognize physicalist soteriology as a historical reality that should be evaluated for its possible utility to contemporary needs.

Jesus of Nazareth’s future engages Christian hope and the fulfillment of creation’s purpose. Jesus’s earthly life and divine identity are inseparable. This union both constitutes and challenges perceptions of linear time and functions creatively to intertwine past, present, and future. Jesus’s transformative impact on humanity and history signifies the final reconciliation and realization of God’s kingdom, which is manifest both in his historical presence and in his eternal nature.

St. Paul speaks about the church as the body of Christ, and he also speaks about the Eucharist as the body of Christ. How are these two affirmations related? Christian medieval authors gave consideration to the notion of the church as the “mystical body” of Christ and understood the church as the fruit or result of eucharistic communion in the “true body” of Christ. This chapter examines the thought of Thomas Aquinas on the church and its relation to the sacraments. It also shows how this conception has deeply informed the modern idea of the church as a sign and instrument of grace for all human beings, called to communion in the one Christ.

This chapter considers the ways in which the classical credal and conciliar formulae provide a framework for understanding who Jesus Christ is and how God saves through the Incarnate Word. These credal and conciliar formulae provide the foundation for theologies across the spectrum of Christian traditions. The chapter is broadly divided into two sections, one focusing on the fourth century Trinitarian controversies, the second focusing on the christological controversies of the fifth to the seventh centuries. For classical Christian theology, only when Jesus is known as the Word made flesh, and as one coequal to Father and Spirit in the divine life, can the work of redemption be understood.

If any book could be said to condemn the whole idea of human beings attempting to become like God, then surely it is the Bible. At the very beginning of Genesis, a serpent (later identified as Satan) tempts Eve with the promise that, if she disobeys God by eating of the tree of the knowledge of good and evil, then she will be “as a god.” According to the Bible, the root of all evil is pride; and pride means precisely thinking that we could become divine. Jesus himself is condemned by the Jewish priests for the blasphemous arrogance of claiming to be divine. And yet, the Bible also promises the faithful that they can become “partakers of the divine nature.” What the Bible condemns, of course, is self-deification. If we surrender to God’s love and seek intimate relation to him, God promises to transform us into creatures who possess divine sanctity and everlasting life. The biblical God is less a paradigm of perfection that we might imitate and more a divine person with whom we might have a loving relationship. According to the Bible, we are divinized not by merely imitating God but by loving and being loved by him.

This introduction situates the book within the landscape of contemporary christology, arguing that a non-competitive christology or a “Chalcedonianism without reserve” best accounts for Christ’s human receptivity to the world. This book will develop such an account through the resources offered by Augustine of Hippo’s christology.

This chapter examines Augustine’s account of the eternal God’s creation of, ordering of, and presence within creaturely temporality, a presence perfected in the Incarnation.

In 1932, Karl Rahner’s article ‘Le début d’une doctrine des cinq sens spirituels chez Origène’ marked the beginning of twentieth-century debate about the ‘doctrine of the spiritual senses’. In 2012, Gavrilyuk and Coakley’s The Spiritual Senses: Perceiving God in Western Christianity marked a renaissance of interest in this theme. Gavrilyuk and Coakley harked back to Rahner as the father of the debate but revised his definition of the ‘doctrine of the spiritual senses, rendering it flexible enough to include a wider range of theologians. However, they drew their further examplars only from among theologians later than Origen, without considering earlier Christian material. In this chapter, select portions of Clement of Alexandria and of the New Testament are discussed, with a view to showing that Christian material earlier than Origen uses the language of sense perception in ways that are historically and conceptually significant for the spiritual senses tradition.

Early Christian theologians regarded the sense of sight, along with the other bodily senses, as an essential aid for comprehending invisible and transcendent realities. Although Christ’s incarnation was regarded as divine condescension to the human need for eyewitnesses, a profound and complex theory, partly influenced by ancient and contemporary philosophical sources, judged visual perception of the external, material world as playing a key role in judging, retaining, and transmitting knowledge about the immaterial realm. The essential connections between physical sight and spiritual cognition were seen as pathways that engendered appreciation both for the divine presence and for the human potential for enlightenment, in this life and in the age to come. Such cognition thus depended not only on words read or heard, insofar as the action of seeing became an equally dynamic and effective means for attaining knowledge of the nature and purposes of God.

This chapter summarizes the findings of each chapter, recognizing the project’s limitations as well as offering prospects for future research. Finally, in a more speculative register, it describes the implications of the preceding chapters for an account of catechesis guided by the Christian doctrine of the incarnation. Catechesis echoes the incarnation of the Word in its medial position. Bridging heavenly and earthly knowledge, catechesis is a concrete practice that proffers true knowledge of God, the transcendent source of being, from within the finite conditions of material life.

This chapter establishes Andrewes’ theology as intensely Christocentric and locates the doctrines of the Trinity and the incarnation at its heart. In tracing the progression through the great feasts of the Christian year, from Christmas, through Easter to Whitsun, Andrewes showed how Christ, both God and man, combined with the other persons of the Trinity to effect the salvation of fallen humanity. In this way he grounded the life of faith and the spiritual progress of the Christian through the sacraments and ordinances of the church towards salvation both in the liturgical year and in the great events of salvation history.

Caroline Humfress explores the distinctive relationship between sacred (Christian) temporality and (Western) ‘hermeneutics of the state’, through a focus upon the founding texts of the Civilian legal tradition: the sixth-century CE Digest, Code and Institutes. Part 1 analyses the Emperor Justinian’s claim that these law-books were to be ‘valid for all eternity’ through a series of close textual readings of the same law-books’ prefatory constitutions. Part 2 contextualises Justinian’s lawyerly invocation of ‘eternity’ within contemporary Eastern Christological disputes, including a set of theological debates, orchestrated by Justinian himself, that took place at the same time (and location) as his law-books were being compiled. Part 3 concludes by arguing that the ‘timeless’, rational, universal, authority of the Civilian Legal tradition – as explored in the chapter by Ryan – was in fact underpinned by a specific Eastern (‘Byzantine’) sacred temporality.