Readers of this blog are well-acquainated with the term “theistic personalism.” It was coined by Brian Davies to describe what he believes to be a problematic understanding of divinity, commonly advanced by analytic philosophers. He specifically names Alvin Plantinga and Richard Swinburne, perhaps the two best-known contemporary Christian philosophers on the planet. Unlike the metaphysically simple God of classical Christianity, theistic personalists begin with the notion of God as an incorporeal person. “Person” here means just what it does in our ordinary discourse—a being that possesses intelligence and will. To this divine Person we may attribute various properties, such as omnipotence, omniscience, goodness, righteousness, benevolence, and so on. These properties are typically determined by perfect-being extrapolation and the plain reading of the Scriptures. Philosophers of the analytic school debate among themselves which properties may be properly attributed to the Deity. Does God foreknow the future, for instance? Some say yes, others no. How can even the Creator know what hasn’t happened yet? Many theistic personalists also divine passibility and mutability. “Indeed,” comments Davies,
many of them make a point of doing so. Why? Largely because they think that, if God is impassible and unchangeable, then he cannot be taken seriously as a person. The persons we call people are changed by what they encounter and discover. They are modified by other things. And, says the theistic personalist, this is how it must be with God. An impassible and unchanging God would, they argue, be lifeless. Such a God, they often add, would also not be admirable. We admire people who can be moved by tragic events. We admire people who can become elated when good things happen. And, theistic personalists sometimes say, we can admire God only if he, like admirable people, is suitably affected by the good and the bad which occurs in the world.1
Theistic personalists also commonly reject the metaphysical attribute of divine simplicity, both because they deem the notion philosophically incoherent and because it ostensibly contradicts the biblical portrayal of divinity. The God of the Bible is, if nothing else, a distinct individual with distinct properties and perfections. As William Lane Craig remarks: “the doctrine of divine simplicity is one that has no biblical support at all and, in my opinion, has no good philosophical arguments in its favor.”
Classical theists wonder whether the deity of theistic personalism can be properly described as God. David B. Hart is characteristically blunt:
Many Anglophone theistic philosophers …, reared as they have been in a post-Fregean intellectual environment, have effectively broken with classical theistic tradition, adopting a style of thinking that the Dominican philosopher Brian Davies calls theistic personalism. I prefer to call it monopolytheism myself (or perhaps “mono-poly-theism”), since it seems to me to involve a view of God not conspicuously different from the polytheistic picture of the gods as merely very powerful discrete entities who possess a variety of distinct attributes that lesser entities also possess, if in smaller measure; it differs from polytheism, as far I can tell, solely in that it posits the existence of only one such being. It is a way of thinking that suggests that God, since he is only a particular instantiation of various concepts and properties, is logically dependent on some more comprehensive reality embracing both him and other beings. For philosophers who think in this way, practically all the traditional metaphysical attempts to understand God as the source of all reality become impenetrable.2
Theistic personalists emphatically reject any suggestion that in their prayers and reflections they are intending any other deity but the Holy Creator rendered in the biblical witness and worshipped by Christians for the past two thousand years. All affirm that he is a metaphysically necessary being, existing in all possible worlds. As Swinburne puts it: “His existence is not merely an ultimate brute fact, but the ultimate brute fact.”3 Most affirm that God created the world from out of nothing and continues to sustain it by his providential will. How then can the personalist Deity be compared to a god? Aren’t the classical theists being more than a bit unfair?
Barry Miller does not think so. In chapter 1 of his book A Most Unlikely God, he contrasts the classical theistic understanding of divine nature and attributes with what he calls “perfect-being theology.” He cites Thomas Morris as a notable practitioner of this “Anselmian” method. Given the limited availability of Miller’s book, I quote him at length:
In challenging the controlling notion of God employed by perfect-being theologians, I have no wish to deny that he is indeed the absolutely perfect being. What I shall be denying, however, is their particular understanding of that notion. Aquinas, for example, understands a perfect being as Actus Purus, a being devoid of all potentiality; Maimonides conceives of it as One, a being ‘without any composition of plurality of elements’; but Anselmians understand it as a being having the maximally consistent set of great-making properties or perfections. Whether the Anselmians’ view is acceptable, however, depends on what they mean by a perfection. As explained by Morris, it is a property that fulfils the following conditions:
1.01. It is better to have than not to have.
1.02. It may vary in degree.
1.03. It is ‘constituted by the logical maximum of an upwardly bounded, degreed great-making property.’ Omnipotence and omnipotence are offered as examples.
The procedure for determining which great-making properties belong to God could hardly be simpler, namely, if having property P contributes to the excellence of a thing that does have P, then an absolutely perfect being has P, otherwise the being does have not have P. Among those that pass the test are omnipotence, omnibenevolence, omniscience, and indeed all the perfections.
The Anselmians’ notion of a perfection has immediate implications for their understanding of God’s transcendence over his creatures. They succeed in setting him well apart from his creatures, many of which may perhaps have great-making properties but no one of which would have even one of them to the maximum degree possible. On this view, the gulf between God and creatures would therefore be wide, and perhaps unimaginably so, though it would not constitute an absolute divide. It is difficult to see how it could be more than a difference of degree, since the terms indicating his properties—‘powerful,’ ‘knowing,’ ‘loving,’ ‘merciful,’ ‘generous’ and so on—seem to be univocally of God and creatures. True, when applied to God, those terms are often qualified as ‘maximally powerful,’ ‘all knowing,’ ‘infinitely merciful,’ unsurpassably generous,’ but the qualifiers do nothing to change the sense of the terms they qualify. Hence, the role of ‘maximally,’ ‘all,’ ‘infinitely,’ and ‘unsurpassably’ cannot be that of alienans adjectives like ‘decoy’ in ‘decoy duck,’ or ‘negative’ in ‘negative growth,’ each of which does serve to change the sense of the term it qualifies. Rather, they are merely superlatives, which of course leave quite intact the sense of the terms they qualify. Thus understood, God’s properties are merely human ones, albeit extended to the maximum degree possible.
As conceived of by perfect-being theologians, therefore, God turns out to be simply the greatest thing around, some kind of super-being that would be quite capable of evoking admiration and wonder, but who could scarcely be described as being absolutely transcendent, or as being worthy of worship. The point is that the terms that perfect-being theology predicates of God are being used in precisely the sense that ipso facto precludes their being predicated of a God who is absolutely transcendent, since it is a sense in which they could equally be predicated of creatures. The difference between creatures and any God of whom they really could be predicated would therefore be simply one of degree. Although this may seem to be a hard saying, it follows straightforwardly from the fact that absolute transcendence cannot be attained merely by extending human attributes to whatever degree is deemed to be ‘maximal.’ The Anselmians’ God is therefore anything but ineffable, for not only can we talk about him, we can do so in precisely the same terms as those we use in talking about humans. Such a view succeeds in presenting God in terms that are comfortingly familiar, but only at the price of being discomfitingly anthropomorphic.4
The give-away here for Miller is the univocity of language for God. For perfect being theology, to say that God is “wise” and that Plato is “wise” is basically to say the same thing, though God’s wisdom is also qualified as (infinitely?) greater. In this sense, the eternal Creator and his creatures share all sorts of properties in common. The difference between them is relative, not absolute—at least so it appears. For the classical theist, on the other hand, to affirm the univocity of language for God is to reduce divinity to the status of a finite entity. On the basis of creaturely perfections, via their participation in the divine perfections, we may speak of God analogically; nonetheless the interval between the two remains infinite, ineffable, absolute. We do not know how our language for God applies to him, for we do not comprehend his transcendent essence. And so the debate continues, world without end.
The contrast between the God of theistic personalism and the God of the Church Fathers and medieval doctors is stark. Although St Basil of Caesarea and St Gregory of Nyssa may have affirmed the univocal use of language when speaking of the divine propria, they also insisted upon divine simplicity and the incomprehensibility of the divine essence. How they pulled this off is the burden of Andrew Radde-Gallwitz’s ground-breaking book Basil of Caesarea, Gregory of Nyssa, and the Transformation of Divine Simplicity.5 But for the Cappadocian brothers, God remains absolute, incomprehensible Mystery, as he was for St Augustine, St Maximus the Confessor, and St Thomas Aquinas.
 Brian Davies, An Introduction to the Philosophy of Religion, chap. 2, pp. 12-13. I am told that the first edition of his book is to be preferred. I have not compared the first and the third. A fourth edition was published last Fall.
 David Bentley Hart, The Experience of God, pp. 127-128.
 Richard Swinburne, The Coherence of Theism, p. 277.
 Barry Miller, A Most Unlikely God, pp. 1-3.
 Radde-Gallwitz has recently changed his mind and now believes that St Gregory affirmed a stronger version of absolute divine simplicity than the formulation he explicated in his book. See his essay “Gregory of Nyssa and Divine Simplicity,” Modern Theology 35 (July 2019): 452-466.
(30 May 2016; rev.)