The following is a post I put up at the very inception of this blog The Evangelical Calvinist, when I started it in 2009 (after I had already been
blogging elsewhere since 2005). It is an essay that Myk Habets provided for me as a guest post here at the blog. I was going to post something on the concept of liberum arbitrium (free will), but came across this post and it hit the broader points I think are even more important. And what is communicated in this short essay implicate concepts like total inability (which I was going to write a new post on), and other more fundamental things as that relates to a doctrine of the triune God.
Union with Christ is a very important aspect of the Evangelical Calvinist project, so failure to understand how EC is nuancing that can result in a failure to actually offer a critique that is ultimately substantial and satisfying. In light of that then, I want to share this essay by Myk, with hopes of gesturing and making clear how EC conceives of ‘union with Christ’ (unio cum Christo).
Without exploring the entire history of Scottish theology as read through the eyes of Torrance, we may note a few key influences on his thinking about union with Christ from this context. Torrance believes that âUnion with Christ probably had a more important place in [Robert] Leightonâs theology than that given to it in the thought of any other Scottish theologian.â Torrance gives Leighton (1611-1684) praise for not considering union with Christ simply as a âjudicial unionâ but as a âreal unionâ which occupies the centre of the whole redemptive activity mediated through Christ as saving grace. Utilised in this way union with Christ is fundamentally related to both election in Christ and the concept of saving exchange whereby Christ gives to humanity what is his â his righteousness and filial status – and takes to himself what is not his own â our sin and alienation. In James Fraser of Brea (1639-1698) Torrance identifies the same emphasis placed upon union with Christ, âIt is through union and communion with [Christ], grounded in the âpersonal unionâ of his divine and human natures, that we come out of ourselves and partake of his fullness; we approach him empty to find all our salvation in the all-sufficient Lord Jesus.â Thomas Boston (1676-1732) viewed union with Christ not merely as a legal union but a âreal and proper union with âthe whole Christâ transformed through his death and resurrection, that is, a union of an ontological kind.â Boston often spoke of this as a âmystical unionâ in which all the benefits of the covenant of grace are given to the elect. Torrance traces these ideas back directly through Robert Bruce (c1554-1631), John Knox (1505-1572), John Calvin, and many others.
Of special interest to Torrance is H.R. Mackintosh (1870-1936). Torrance shows how Mackintosh in continuity with Calvin and the Scottish Reformed tradition, also made the concept of the unio mystica central to his soteriology. For Mackintosh, the concept of the unio mystica was merely a dogmatic restatement of the biblically rich material on the believerâs participatio Christi found throughout the New Testament, particularly in the âin/with Christâ language of Paul and in the organic relationship between Christ and believers depicted in Johannine theology.
According to Mackintosh, mystical union effects a change in the believerâs identity. Through participating in Christ there is an âimportation of anotherâs personality into him; the life, the will of Christ has taken over what once was in sheer antagonism to it, and replaced the power of sin by the forces of a divine life.â There is a twofold objectivity about union with Christ: on the one hand, there is a âChrist-in-youâ relationship, and on the other there is a âyou-in-Christâ aspect. The former has to do with Christ being present within the believer as the source of new life, while the latter points to the foundation of this new life as lying outside of the believer in Christ. The union is mediated by the Holy Spirit. Torrance adopts these two aspects of participation in Christ into his own theology.
Mackintosh was attempting to postulate a union with Christ Jesus that went beyond the merely moral or ethical. Like Torrance, Mackintosh had reservations over using the term âmystical unionâ (despite teaching its substance), but chose to define what he meant by unio mystica more willingly than discard the term altogether. By âmysticalâ Mackintosh means, according to Redman, âthat the believerâs relationship to Christ transcends human relationships and human experiences of solidarity and union.â In place of a mere moral union Mackintosh presents a spiritual union that, while rational, is beyond human comprehension. By âunionâ Mackintosh does not mean a complete identification in which Christ and the believer become indistinguishable; this would be an essential union, something found in the writings of some of the medieval mystics. Mackintosh was aware of the risk of pantheism and avoided this in his christology. Through participatio Christi, Mackintosh argues, one has communion with God as a human being because it is through union with the incarnate Christ that we come to commune with God. By defining union with Christ in such a way Mackintosh is in basic agreement with Calvinâs three senses of the term – incarnational, mystical, and spiritual. One can clearly see why Torrance is so attracted to Mackintoshâs theology.
In his critique of Mackintoshâs doctrine of the unio mystica Redman comments on his use of language. He argues that Mackintosh should have ceased using the language of mystical union and instead used concepts more akin to the essential logic of his theology, such as spiritual communion. Torrance perhaps agrees with Redmanâs critique for he does not use the term âmystical unionâ either, but retains the basic three-fold sense of union with Christ. Despite differences of terminology, Torrance considers his use of theĹsis, both in terminology and in substance, conforms to a consistent theme of Reformed theology going back to Calvin and found particularly within the Scottish tradition.
Within this very specific trajectory of Reformed theology Torrance posits his own soteriology. Torrance articulates the dimensions of union with
Christ in various ways but consistently he sees three realities involved. Firstly, there is union with Christ made possible objectively through the homoousion of the incarnate Son (Calvinâs âincarnational unionâ ). Secondly, there is the hypostatic union, and its significance for the reconciling exchange wrought by Christ in his life, death, and resurrection (Calvinâs unio mystica). Finally, these two aspects of union with Christ are fulfilled or brought to completion in the communion that exists between believers and the triune God (broadly corresponding to Calvinâs âspiritual unionâ).
In a paraphrase of Torranceâs theology, Hunsinger presents three aspects which correlate approximately to our outline. Firstly, reception, a past event which involves what Christ has done for us. This is received by grace through faith alone. Secondly, participation, a present event, in which believers are clothed with Christâs righteousness through partaking of Christ by virtue of his vicarious humanity. Thirdly, communion, the future or eschatological aspect which equates to eternal life itself in which believers enjoy communion in reciprocal love and knowledge of the triune God.
According to Torrance, union with Christ is not a âjudicial unionâ but a âreal unionâ which lies at the heart of the whole redemptive activity mediated through Christ as an act of saving grace. Torrance uses three words to elaborate what union with Christ means in his essay âThe Mystery of the Kingdomâ: divine purpose (prothesis), mystery (mystÄrion), and fellowship/communion (koinĹnia). This triadic structure reflects the trinitarian action of the triune God: prothesis â the Father, mystÄrion â the Son, and koinĹnia â the Holy Spirit. Prothesis refers to divine election whereby the Father purposed or âset forthâ the union of God and humanity in Jesus Christ. Divine election is a free, sovereign decision, a contingent act of Godâs love; as such it is neither arbitrary nor necessary. Torrance thus holds to the Reformed doctrine of unconditional election, one which represents a strictly theonomous way of thinking, from a centre in God and not in ourselves. Torrance draws on certain aspects of Barthâs doctrine of election for he equates the incarnation as the counterpart to the doctrine of election so that âthe incarnation, therefore, may be regarded as the eternal decision or election of God in his Love…â Calling upon Calvinâs analogy, Torrance insists that âChrist himself is the âmirror of election,â for it takes place in him in such a way that he is the Origin and the End, the Agent and the Substance of election…â
The second key expression Torrance uses is mystÄrion; the term is applied to Christ, and specifically to the mystery of his hypostatic union. In relation to God this means that the consubstantial union of the Trinity upholds the hypostatic union so that God does not merely come in man but as man. In this union of God and man a complete henosis between the two is effected, and they are âperfectly at oneâ.
He had come, Son of God incarnate as son of man, in order to get to grips with the powers of darkness and defeat them, but he had been sent to do that not through the manipulation of social, political or economic power-structures, but by striking beneath them all into the ontological depths of Israelâs existence where man, and Israel representing all mankind, had become estranged from God, and there within those ontological depths of human being to forge a bond of union and communion between man and God in himself which can never be undone.
Hence the hypostatic union is also a âreconciling unionâ in which estrangement between God and humanity is bridged, conflict is eradicated, and human nature is âbrought into perfect sanctifying union with divine nature in Jesus Christ.â
This atoning union is not merely external or juridical but actual, and points to the higher reality of communion. Hence Torrance can assert that:
it is not atonement that constitutes the goal and end of that integrated movement of reconciliation but union with God in and through Jesus Christ in whom our human nature is not only saved, healed and renewed but lifted up to participate in the very light, life and love of the Holy Trinity.
Union with Christ must be understood within Torranceâs doctrine of reconciliation to refer to the real participation of believers in the divine nature made possible by the dynamic atoning union of Christ. Torrance contends this is atonement in effect. As a result of the incarnation, humanity is united to divinity in the hypostatic union so that:
In the Church of Christ all who are redeemed through the atoning union embodied in him are made to share in his resurrection and are incorporated into Christ by the power of his Holy Spirit as living members of his Body…Thus it may be said that the âobjectiveâ union which we have with Christ through his incarnational assumption of our humanity into himself is âsubjectivelyâ actualised in us through his indwelling Spirit, âwe in Christâ and âChrist in usâ thus complementing and interpenetrating each other.
In addition to the hypostatic union Torrance applies the concept of mystÄrion to the mystery of the one-and-the-many, or Christ and his body the church. Torrance thus understands union with Christ to be largely corporate in nature but applicable to each individual member of his body who is ingrafted into Christ by Baptism and continue to live in union with him as they feed upon his body and blood in Holy Communion. Understanding the church as the body of Christ is thus another way of asserting an ontological union between the community of believers and Christ the Head.
The third term Torrance uses is koinĹnia, and it too has a double reference. First, vertically, it represents our participation through the Spirit in the mystery of Christâs union with us. Second, horizontally, it is applied to our fellowship or communion with one another in the body of Christ. At the intersection of the vertical and horizontal dimensions of koinĹnia is the church, the community of believers united to Christ, who is himself united to humanity through the incarnation. Torrance asserts that âin and through koinonia the divine prothesis enshrining the eternal mysterion embodies itself horizontally in a community of those who are one with God through the reconciliation of Christ.â It is this theology of union with Christ by means of fellowship or participation in God which links Torranceâs doctrines of soteriology and ecclesiology; both are aspects of his christology, as we shall see in more detail in the next chapter.
In summarising Torranceâs use of these three concepts Leeâs study helpfully concludes that âthe cause (causa) of âunion with Christâ is prothesis, the election of God. Its substance (materia) is mysterion, the hypostatic union in Jesus Christ, and its fulfilment (effectus) is koinonia, the communion of the Holy Spirit.â This outline focuses on the trinitarian foundation inherent throughout Torrance’s work which reminds readers not to see the work of reconciliation as exclusively that of the Son, or the Son and the Spirit, but as the work of the triune God.









