This book is a philosophical examination of the logical problems associated with the claim that Jesus of Nazareth was one and the same person as God the Son, the Second Person of the divine Trinity.

"On Reduplication is a study of the logical properties of reduplicative propositions, that is, of propositions having qualifications, like 'Christ "qua God is a ...

I consider the fundamental philosophical problem for Christology: how can one and the same person, the Second Person of the Trinity, be both God and man. For being God implies having certain attributes, perhaps immutability, or impassibility, whereas being human implies having apparently inconsistent attributes. This problem is especially vexing for the proponent of Conciliar Christology – the Christology taught in the Ecumenical Councils – since those councils affirm that Christ is both mutable and immutable, both passible and impassible, etc. (...) Many extant solutions to this problem approach it by claiming that the predicates are incompatible when said of the same thing without qualification, but that once the appropriate qualification is added, compatibility is achieved. I provide a different approach. Here I argued that the predicates can be understood so that they are compatible. I then work out the logical relations between the predicates, so understood, showing that no contradiction follows from understanding them in the way I suggest. After that, I consider some of the motivations we have for believing the purportedly incompatible pairs to be, in fact, incompatible, and argue that, on the view offered here, we can salvage most of our intuitions that motivate taking the predicates as incompatible. Finally, I consider three objections. (shrink)

The period from Thomas Aquinas to Duns Scotus is one of the richest in the history of Christian theology. The Metaphysics of the Incarnation aims to provide a thorough examination of the doctrine in this era, making explicit its philosophical and theological foundations. Medieval theologians believed that there were good reasons for supposing that Christ's human nature was an individual. In the light of this, Part 1 discusses how the various thinkers held that an individual nature could be united to (...) a divine person. Part 2 shows how one divine person could be incarnate without any other. Part 3 deals with questions of Christological predication, and Part 4 shows how an individual nature is to be distinguished from a person. The work begins with a full account of the metaphysics presupposed in the medieval accounts, and concludes with observations relating medieval accounts to modern Christology. (shrink)

According to the Christian doctrine of the Incarnation, the Son of God is truly but only contingently a human being. But is it also the case that Christ’s individual human nature is only contingently united to a divine person? The affirmative answer to this question, explicitly espoused by Duns Scotus and William of Ockham, turns out to be philosophically untenable, while the negative answer, which is arguably implicit in St. Thomas Aquinas, explication of the Incarnation, has some surprising and significant (...) metaphysical consequences. (shrink)

In this article I present St. Thomas Aquinas’s views on the possibility of multiple incarnations. First I disambiguate four things one might mean when saying that multiple incarnations are possible. Then I provide and justify what I take to be Aquinas’s answers to these questions, showing the intricacies of his argumentation and concluding that he holds an extremely robust view of the possibility of multiple incarnations. According to Aquinas, I argue, there could be three simultaneously existing concrete rational natures, each (...) of which is assumed by all three of the Divine Persons, all at the same time. (shrink)

Bible and tradition remain silent on intelligent extraterrestrial life, and few modern theologians have expressed themselves on this topic. Scientific insight suggests the possibility, even likelihood, of the development of life on extrasolar earthlike planets. It is argued that such life forms would resemble earthly life and also develop a religious and moral life. As creatures with free will they would be prone to sin and in need of salvation. It is argued that this would not require multiple incarnations, since (...) Jesus is the cosmic Christ. (shrink)

The prospect of extra‐terrestrial intelligence has become a central topic of scientific investigation and popular speculation. This has generated questions of ethical and theological significance that now receive growing coverage. Throughout his writings, Karl Rahner remained open to the prospect that the process of cosmic evolution had yielded sentient life form in other galaxies. He argued against any theological veto on this notion, while also distinguishing the existential significance of such life forms from that of angels. Furthermore, the possibility of (...) multiple incarnations is raised though not affirmed. With its christological intensity, his theology seems to militate against any repetition of the incarnation. This essay examines some of the arguments for and against the possibility of multiple incarnations, before assessing the current state of the extra‐terrestrial intelligence debate. In the light of inconclusive scientific findings, the cautionary position of Rahner is re‐affirmed. (shrink)

Formulated by Aquinas, commented on by post-Copernican philosophers and theologians, analysed in depth by C.S. Lewis, and deliberated by some contemporary writers, the question of multiple incarnations either within humanity or amongst extra-terrestrial sentient species is all too intermittently examined: ‘Can the Christ be incarnated more than once in our reality, or somewhere else in the universe, or another reality?’ In this paper, we examine the debate and the conclusions: that is, Lewis’s position within his philosophical theology and his analogical (...) narratives; also, some contemporary philosophers of religion and theologians (Karl Rahner, with Christopher L. Fisher and David Fergusson; Sjoerd L. Bonting and William B. Drees; E.L. Mascall and Brian Hebblethwaite; Oliver Crisp and Keith Ward). How do they relate to Aquinas’s handling of the question and how do they compare with Lewis’s approach based on a theology of the imagination (grounded in Augustine and Alice Meynell)? Can Lewis resolve the argument? Could alien species have witnessed wholly different acts, equally unique, costly to God, and necessary to the process of salvation? Any answer or explanation relates to the function and purpose of the incarnation: the Fall, original sin—therefore, how we define the boundaries, limits, of atonement. (shrink)

Medieval theologians discussed the logical structure of reduplicative propositions in the midst of their discussions of the Incarnation and the Trinity. Aquinas has the usual medieval analyzes of reduplicative propositions: the specificative and the strictly reduplicative. But neither analysis resolves successfully the problems of the consistency of the statements about God while avoiding making the Trinity or the Incarnation a merely accidental feature of Him. However, Scotus introduces another analysis: abstractive. I shall conclude that Scotus’s view of reduplication, one, if (...) not invented by him, as least stressed and developed by him, offers a better solution of the consistency of the Incarnation and the Trinity than that of Aquinas. (shrink)