Both the understanding of the ‘image of God’ in Scripture and its meaning in theological anthropology have varied tremendously throughout the history of theology. Given the vastness of the material, it is not possible to present even a nearly representative selection in this article. Further, there is no consensus on how to differentiate between types of understanding, although the distinction between a ‘substantial’ and a ‘relational’ understanding, often credited to Paul Ramsey (Ramsey 1950), has gained wide acceptance.
However, it is possible to overview the historically most influential understandings by starting with the God-human similarity implied in the expression ‘image and likeness of God’, and then focusing on the following three key questions:
3.1 Imago Dei and human constitution: mimetic understandings of human resemblance of God
3.1.1 Irenaeus
Irenaeus is the first prominent seconnd-century theologian to fundamentally engage with Gen 1:26. His highly original interpretation must be understood as part of his anti-gnostic apologetics, as εἰκών (image) was a soteriological and anthropological key concept in the gnosis-oriented understandings of Christianity he opposed.
Irenaeus’ most influential contribution to the interpretation of Gen 1:26 is his distinction between ‘image’ and ‘likeness’ (imago and similitudo, Adversus Haeresis V,6,1; 16,2). This distinction subsequently became the standard terms for, respectively, that of original created humanity, which remains after the Fall, and that which is lost and only regained through salvation in Christ.
In Irenaeus, this is understood within a tripartite anthropology (body, soul, spirit), where the Spirit denotes the Spirit of God, and the soul is what animates the human being (the breath) and enables it to receive the Spirit (Jacobsen 2006). In the soul-bodily unity of flesh and reason, humans are imago Dei by virtue of their created human structure (in plasmate), but they can only acquire imago Dei by receiving the Spirit of God. For Irenaeus, imago is a dynamic concept. Humans were created to grow in likeness to God and thus into perfection. Therefore, the likeness was not perfect from the; Adam was created as a child who needed to grow, and for Irenaeus, similarity to God is the goal of human life. The Fall can be partially explained by this original imperfect similarity, and salvation as restoration is understood as reestablishing the original process of growth. Adam was (like) a child, who was to grow but fell instead. Through Christ, the possibility for new growth is provided. This occurs when the true image and likeness of God becomes present in the world through the Incarnation and manifests itself in the salvation of believers. In this way, Irenaeus combines a salvation-historical soteriology of the restoration of creation with a soteriology of growth.
With the concept of the indestructible imago, Irenaeus has provided language to express that even in humanity’s fallen state, there remains a capacity within human constitution to receive God’s Spirit/salvation/perfection (imago). In this respect Irenaeus’ imago-doctrine has had a significant influence.
3.1.2 Tertullian
His younger contemporary, Tertullian, has not been nearly as influential at this point, perhaps due to the fact that his image-anthropology is shaped by Stoic categories and the Stoic concept of natura (Søes 2019: 48–50). However, this very aspect of Tertullian may be said to anticipate relational understandings of imago Dei, as relation is essential to the Stoic concept of ‘natura’. Creation in the image and likeness of God, then, expresses created humans’ relation to God, which in turn simply is human nature. It implies a resemblance to God, as humans can be said to correspond to God (Adversus Marcionem II,5,6) in two respects, namely freedom and goodness.
For Tertullian, ‘nature’ is a dynamic concept, signifying God’s ongoing process of creating humans in his image through communication with them. The Imago, so Tertullian, is universal and applies to all humans because God never ceases to create. He finds it evident in human conscience, where he believes God to speak, and in human phenomena such as understanding, sensation, emotion and even bodily movement. Attributes like reason and will, which later tradition identified with the divine image in humans, are viewed by Tertullian as ‘signs’. They are not identical with the divine image, but they point to the created human’s participation in it. Moreover, the Fall doesn’t corrupt neither the sign-function of human capabilities nor created human goodness. Instead, it introduces a second and alien nature that coexists with the created nature in each individual (De Anima 42,6). Hence, according to Tertullian, participation in the divine image (i.e. the relation to God) is an enduring reality, but it’s not the whole story. Additionally, every human has an equally significant relation to the Devil. Consequently, humans have a dual nature and experience a sense of internal division.
3.1.3 Augustine
The most influential understanding, at least in Western theology, comes from Augustine: his complex interpretation of imago Dei evolves over his lengthy life. Unlike his Latin Christian predecessors such as Tertullian and Hilary of Poitiers, Augustine directly employs imago Dei as an anthropological term. While they distinguished between Christ, who is the image of God, and humans, who are created according to the image (secundum imaginem), Augustine asserts that humans are images of God (De Trinitate VII,6,12). However, he also employs ‘image’ in a Christological sense, akin to the Pauline writings. This duality stems from his profound engagement with Plotinus’ metaphysics and concept of image, particularly with the point that an image participates in what it resembles, and that the similarity of the image with the prototype hinges on the degree of participation. Thus, Christ possesses a unique degree of similarity with God, being one with Him. While all other humans are indeed images of God, they remain distinct from (Boersma 2016).
In his early writings, particularly in De vera religione, Augustine develops the important distinction between ‘using’ (uti) and ‘enjoying’ (frui). The true goal of human life is to enjoy God, and everything in the created world, other humans included, becomes false images or idols when they become objects of the ‘enjoyment’ that belongs exclusively to God. On the other hand, fellow human beings can be loved ‘in God’ (De vera religione 47,91). This is the proper use of the image of God in others and a part of the path to ‘enjoy’ God.
For this, and thus for human ascent to enjoy God, humans need grace. In this regard, Augustine differs from the Neoplatonists, whose concept of image he otherwise aligns himself with. Grace is mediated through Christ, specifically through the Incarnation as it was Christ’s way to become the true image of God in the world. Through grace, humans are led to God, gradually becoming more and more like him, until they are eschatologically renewed in His image and likeness (De vera religione XXVI,49).
In early Augustinian thought, ‘the image’ is thus participation in God, actualized only through grace. Augustine can even describe the image as being erased from the human soul by sin (Markus 1964: 142). However, he changes his mind on this point in the later parts of De Trinitate (Kany 2007: 228–29), where he presents his famous doctrine that, even after the Fall, humans continue to be an image of God, as the structure of the human mind is a triad, mirroring the Trinity.
Augustine associates this with various triadic structures in the soul, such as ‘mind, love, and knowledge’ (De Trinitate IX,4,4) or ‘memory, inner vision, and will’ (XI,3,6). These are examples of what he terms the ‘outer trinities’ of the human being. However, the triad that forms an image of the triune God is the ‘inner trinity’ (X,11,18) of memory (memoria), intellect (intellectus) and will (voluntas). This trinity resides in the rational soul (XIV,4,6) and serves as the means, by which humans know – or at least have the potential to know – God. This structural trinity of the soul is indelible in humans, even in the state of sin (XIV,14,19) implying that humans are inclined toward and possess a particular capacity for participation in God (XIV,8,11; 12,15). Augustine occasionally employs the distinction between imago and imago, although this terminology is not pervasive in his works. Nonetheless, the point is that divine grace in imago builds upon and completes imago, but that this completion occurs solely through grace, that is, through participation in divine wisdom.
3.1.4 Aquinas
The late Augustine provided the basic framework of the doctrine of imago Dei in the medieval scholastic tradition. Aquinas addresses it in Question 93 of the first part of the Summa Theologiae, arguing that humans bear the image of God by virtue of having an intellectual soul (I,93,2) and that humans resemble God in the intelligible actions of the soul. The soul is the image of God most perfectly in the act of knowing and loving God, and Aquinas can conceptualize this distinction in degrees of perfection using the differentiation between imago and imago (Brown 2014), though this terminology is not very frequent in him neither. Regarding the question of whether the image of God is universal in the sense that it is present in every human being, he responds by distinguishing between the image by nature, grace, and glory (I,93,4). By nature, all rational souls have a certain knowledge of God, and thus, they are images of God. However, only the righteous partake in the habitual knowledge of and love for God, which grace brings about by perfecting nature. And this God-similarity of the righteous is, in turn, most perfect in the beatific vision of God of the blessed. Thus, Aquinas aligns himself with Peter Lombard, who in the Sententiae carried out the same tripartition by distinguishing between imago creationis (naturae), imago recreationis (gratiae) and imago similitudinis (gloriae) (Peters 1980: 508).
To suggest that Aquinas and scholasticism view the natural imago solely through the lens of human abilities and capacities would be inaccurate. Aquinas’s conception of image-bearing encompasses human agency and action (Deane-Drummond 2012: 937), even concerning humans prior to faith. But the crucial point is that this is understood as something that grace, in some sense, builds upon and completes by adding the supernatural gifts of holiness and righteousness.
3.1.5 The Reformers: Luther and Calvin
However, exactly this is at the heart of the reformers’ critique. In the Genesis Lecture, Luther rejects both the distinction between imago and imago and the Augustinian idea that the Trinity is depicted in the soul’s triadic structure, on the grounds that if it were true, humans would be able to bring about their own salvation by the powers of their nature (WA 42,45,38–39, cf. 39/1,176,32–34). Instead, according to Luther, the image of God is the life of the first humans before the Fall: a paradisiacal life where Adam had greater strength, keener senses, was wiser and more beautiful than humans after the Fall because he lived out of original righteousness and was content with God’s grace (contentus gratia Dei, WA 46,47,11). For Adam, this involved a similarity to God in terms of life, righteousness, holiness, wisdom, etc. (WA 42,49,15–16; 42,242,10–12).
This image-life is completely lost through sin, so Luther. There is nothing left in human nature that grace can build upon or cooperate with when the image is bestowed anew in justification by faith. Thus, justification can be described as a restoration of the image (WA 42,48,11), which is a unique work from God’s side (opus Dei singulare, 42,46,11) that continues in a lifelong process and is fully completed only in the eschatological life yet to come (WA 42,48,27; 42, 242,21).
The fact that the image is lost means that it is unknown and incomprehensible to reason (WA 42,48,32–33). This is addressed in disputatio de homine: Reason (philosophy) is limited to understanding the human being as it is in itself, without referring it to its true source and cause, namely God (WA 39/1,175,36). Faith (theology), by contrast, regards the human being in its relation to God, coram Deo (Ebeling 1989: 409–10). Thus, faith is both soteriological and noetic a redefinition of the human person. Through faith the human becomes externally grounded (in God) by justification, and faith is exactly the human recognition of oneself as grounded in God (Slenczka 2014). On the contrary, sin is precisely the self-overestimating perception of oneself as self-grounded. Therefore, only faith can see the human in the relation to God that defines the believer as imago Dei.
Like Luther, Calvin starts from the premise that it is impossible to know God without knowing oneself, because the recognition of God without the recognition of oneself (as created, fallen and redeemed) is a mere philosophical abstraction: ‘...they [the philosophers] were seeking in a ruin for a building, and in scattered fragments for a well-knit structure’ (Inst. 1559, I,15,8; Calvin 2006: 195–196). Thus, the human person in the fallen state is characterized by perversity, depravity and corruption. Sin entails a spiritual death where the image of God is annihilated and destroyed. Therefore, the image of God can be known only in its restoration through Christ, brought forth in believers through God’s sovereign providence and predestination (Lane 2009: 286–287).
The content of the imago Dei is, then, that the believer is conformed to Christ, the true image of God, by reflecting God’s glory as in a mirror. The metaphor of the mirror is crucial for Calvin, and it means that ‘the image’ is present only to the extent that God is currently reflected in human life. Although this clearly implies an ethical renewal, it is not to be understood in a moralistic sense. Fundamentally, it concerns the rectitude (rectitudo) in relation to God and to fellow human beings, which characterizes intelligible reception of and response to God’s word (Torrance 1949: 35–36.64). To be in the image of God is to be a child of God (Vliet 2009: 118–20).
3.2 Relational understandings of human resemblance of God: imago Dei in Bonhoeffer and Barth
The point of speaking of the imago Dei as lost, both in Luther and Calvin and among those who think like them, is to deny that anything in human nature contributes to salvation or cooperates with God in justification. Moreover, it underscores the Pauline understanding of the image as Christ-conformity, brought forth by the Spirit.
However, it is fair to ask if there is any textual basis in Genesis to assert that ‘the image’ was lost due to sin, whether one interprets imago Dei as a direct anthropological term or as indicating human participation in God. Both Gen 5:1–3 and Gen 9:6 seem to exclude any talk of the loss of the image. Further, one can argue that the very idea of a universal human dignity, encompassing all humans, including those in fallen state, as in Gen 9:6 and Jas 3:9, contradicts the idea of a lost image. Even further, it is at least debatable whether the Reformers adequately addressed the restoration or renewal of the image of God in Christ as a true renewal of creation. If the created imago Dei solely refers to a completely lost original state, and if humanity in its present state merely ‘material for God with regard to the coming form of life’ (WA 39/1,177,3–4), then the connection between God’s work as Creator and as Savior seems to be blurred.
These objections are part of the background for the renewed interest in the imago Dei in the first half of the 20th century, which led Dietrich Bonhoeffer and Karl Barth to propose a relational understanding. According to Bonhoeffer, human resembles God by being free. This freedom does not lie in human nature, but in the dependence on the fellow human that constitutes created humanity. It is a ‘being-free-for-the-other’, in which God as a free gift lets the God-Christ relationality be depicted in human relationality. Bonhoeffer terms this analogia relationis (Bonhoeffer 2007: 58–62.74).
Barth develops this original idea significantly in the third section of Church Dogmatics from 1945 onwards. Human ‘I-Thou-existence’, that is, human relationality, reflects the Trinitarian relationality in God. According to Barth, the created relation between man and woman is the original form of human relationality, and he understands the second part of the statement in Gen 1:26 (‘male and female He created them’) as an apposition to the statement of creation in the image and likeness of God (Barth 1945: 220).
The crucial point, then, is that human relationality anticipates the covenant relation with God, for which human life is eternally determined. In this sense, says Barth, humans are ‘capable of covenant’ (Barth 1945: 267–68). One can ask whether Barth thereby introduces a created ‘point of contact’ for divine grace or a form of natural theology, as he had previously rejected it in Emil Brunner’s case. Brunner understood Barth that way (Brunner 1951: 123–31). But Barth himself did not. On the contrary, he held God’s revelation to be logically and ontologically prior to creation and insisted that the analogy between God and humans exists only in the revelatory use that God’s Word makes of human relationality. Hence, it is recognisable only through faith (Søes 2019: 108–113).
3.3 Imago Dei and (trans)formation: dynamic understandings of human resemblance of God
As we have seen, the doctrine of imago Dei largely concerns how human beings can attain knowledge of God and participate in His saving grace. This is the most prominent theme throughout the history of theology, whether in the early Church, in medieval scholasticism, in the Reformation or in 20th-century relational understandings.
The same applies to the various dynamic models that have gained influence in modernity, where ‘the image’ is understood as the goal or destiny of human life. A significant figure in the development of this understanding is the Renaissance humanist Pico della Mirandola, whose Oration on the Dignity of Man plays a crucial role. According to Pico, the human is a ‘creature of indeterminate image’ (indiscretae opus imaginis, §18, Mirandola et al. 2012: 116), that is: without fixed identity. Precisely by reflecting the imageless God, humans have the freedom to shape and form themselves. Thus, the image of God is the goal of this dynamic process of formation rather than the starting point.
Some 300 years later this thought is further developed by the philosopher and theologian J.G. Herder, who understands the creation in the image of God as the guiding principle in a kind of ‘formation process towards humanity’. The underlying idea is that unlike animals, humans are created in an unfinished state, which enables them to transcend their instincts and be spiritually guided by the divine image (Herder 1965a: IV,6, 159–162; IX,5 377–378). Therefore, imago Dei guides and directs human life though it will be fully reached only in a future existence of immortality. Thus, Gen 1:26 should be understood as a calling to become the image of God. Herder believes this process of formation, both in the history of the human race and in individual humans, to be driven by divine providence expressed in God’s ‘sacred laws of nature’, through which humans are summoned to bring forth all that is noble and excellent (Herder 1965b: XV,1). Consequently, imago Dei in Herder is closely tied to a high degree of developmental optimism concerning humanity and culture.
This approach is also adopted in liberal theology, as seen in Schleiermacher, in whom the image of God does not concern humanity’s original state but rather the goal of the ‘predisposition for God-consciousness’ inherent in every human being (Schleiermacher 1884§60,1: 309–311; §61,1: 314–315). The Christological affirmation that Jesus is the true image of God, then, refers to his profound God-consciousness.
In the 20th century, Wolfhart Pannenberg has developed a comprehensive theological anthropology that, in crucial respects, builds upon and reworks important elements from Herder. Pannenberg agrees with Herder that the imago Dei is the goal and destiny of human life (Pannenberg 1979), yet still in the process of becoming, as it is ultimately an eschatological reality. Pannenberg also incorporates the fundamental Herderian idea that humans are created incomplete, characterized by instinctual reduction, and that human freedom and the uniquely human ‘openness to the world’ derive from this condition. This thought is elaborated in Pannenberg by the works of A. Gehlen and others. The distinct human object-awareness implies a religious dimension because human existence is structured in such a way that the centre of human life lies outside itself (Pannenberg 1983: 57–71. See also Kelsey 2009 who develops this idea in a different way). It is an eccentric existence.
The similarity with God, implicit in the concept of imago Dei, is not a question of morality. Rather, it lies in human participation in God’s life, achieved by relinquishing one’s own centrality. Thus, it entails obedient submission to and self-distinction separation from God. However (and on this point Pannenberg differs from Herder, Søes 2019: 192–195), human formation does not occur by divine providence but solely through the eschatological in-break in history, which took place in the life, death, and resurrection of Jesus. In him, the eschatological image of God is definitively anticipated (Pannenberg 1991: 250–266). Thus, conformity to this Christological imago and human resemblance of God through participation in God’s life occur precisely when humans actively renounce the desire to be like God (Gen 3:5). Though Pannenberg emphasizes that humans are responsible subjects, it is not up to human striving to produce or actualize the Christ-conformity of the image-life. In fact, it consists precisely in renouncing the significance of one’s own striving.