(i) We know the goodness of things per prius and we infer per posterius that the cause of this goodness must exist in God. But what we have at this point is an inference from something known to something that must exist, but whose nature is unknown to us. And it is not enough to suppose that the cause must somehow resemble the effect. All the more since, in the course of his discussion of analogy, Thomas (in Summa Theologiae I, 45, 7, for example, following the lead of Augustine) distinguishes two types of likeness between cause and effect. The effect may represent “quantum ad similitudinem formae” (“by reason of the similarity of its form”) and this is the case with the “repraesentatio imaginis” (“the representation of an image”), in other words, of the statue of Mercury that resembles Mercury. But it can also represent by “causalitas causae” (“the causality of the cause”), in which case there is no morphological likeness but rather “repraesentatio per vestigium” (“representation by way of a visible trace”), as occurs both in the relationship between smoke and fire and that between a man and the footprints he leaves behind him. (Thomas—following Albertus Magnus—grants that the footprints may resemble the form of the foot, but he points out that the imprint of the foot is not similar to the man who left it and therefore cannot tell us who that man was.36 In Scriptum super libros Sententiarum I, 8, 1, 2 he gives the example of the sun, which produces heat but is not hot in itself.) If then we go back from the goodness of things to their divine cause, we do so out of causalitas causae, but we have no idea of what this goodness is like. We call Goodness the cause of goodness merely to make up for the penuria nominum, and hence a case of equivocation. It is as if, seeing smoke and not knowing anything about the fire that caused it is, we were to name this unknown quantity Hypersubstantial Smoke, thinking that what we were faced with was an example of repraesentatio imaginis and not repraesentio per vestigium. Let us consider the disturbing consequences of such a solution: if the mechanism of attribution were still valid, given that, among our actions and among the events of the world, some things are bad (a crime, rotten food, an illness), why do we not attribute the cause of these things to God, thereby making him responsible for Evil? Because we know a priori that there is no Evil in God (whereas there is Goodness). But if we already knew that, there was no need to look for an analogy. All that remains, then, is the second conclusion.
(ii) We know (by faith or revelation) the attributes of the Divinity, and it is therefore per prius, on the basis of these attributes, that we predicate per posterius the goodness of terrestrial things. We know, in other words, that God is ontologically Good per prius and that things are good per posterius, insofar as they share in the goodness of the Divinity. The attribute “good” characteristic of a certain thing is the equivalent of the attribute “animal” that characterizes a cat. We understand that a cat is an animal because we already know what an animal is. Thus we have a predication of a metonymical type from one known thing to another known thing: the attribution does not lead us to discover anything we did not already know.
Alternatively, predication in divinis implies an analogy of proportionality. But, in the case of the Aristotelian analogy, we discover an identity of properties between two things both of whose properties are known (the discovery involves the unsuspected relationship established between two known things). In an analogy extended in divinis, on the other hand, the trick would be to identify (and this would be truly unsuspected) an identity of properties between something about which we know everything and something about which we know nothing. In other words, the proportion established is not (as was the case with the shield of Ares and of the cup of Dionysus) A:B = C:D, but A:B = x:y, where x and y are unknown properties. This would in fact be the proportionality according to which we could say that human knowledge bears the same relation to the human mind as divine knowledge does to the divine mind. The most one could hazard is that between divine knowledge and the divine mind (both unknown) a relationship is established in some way similar to the one established between human knowledge and the human soul. But similar how? By repraesentatio imaginis or by causalitas causae? The comparison established between Achilles and the lion works as long as we already know what the wrath of Achilles is like, as well as the fierceness of the lion, and only then does the wrath of Achilles appear more convincing. But saying that divine Knowledge is to the divine Mind what human knowledge is to the human mind teaches us less than the comparison does about Achilles. In the second case, the wrath of the warrior, of which we already have some inkling, is reinforced through the comparison with the lion with the attributes of fierceness and courage. We learn something new. In the case of predication in divinis, we learn that something, we don’t know what, bears a pale resemblance to human intelligence. Accordingly, if predication in divinis were analogy of proportionality it would teach us less than a good metaphor teaches us.
Unless we already know what God is and what his qualities are, in which case the analogy would tell us something interesting about whatever is compared to God, not about God, about Whom we already know all there is to know.
It could be argued that the cases in which God is truly spoken of metaphorically are exempt from this criticism. The poetic metaphors of the Bible that speak of a God raging like a lion or as persistent as a woodworm tell us something about his wrath or his obstinacy. Granted. But these metaphors are not designed to reveal to us God’s nature, which is unknown, but the effects of his operations, which we already know. They do not posit an unknowable God but a God already anthropomorphized, like the pagan gods. Proceeding from the known to the known, these metaphors place something before our eyes, but in the mode of a simile. We are on this side of, or in any event outside of, an analogical discourse in divinis.
This is the fundamental weakness with any discussion of the analogia entis, and in fact all it permits the philosopher to discover is what the philosopher already knew on faith. It is no accident that discussions of the analogia entis engender prodigies of subtlety, but end up dissipating with the Scholasticism of the Post-Reformation. In fact, whenever we have to speak of the divine attributes, if we assume a Platonic-Augustinian position, then we already know everything about God for innate reasons, and only because we have this knowledge of the divine can we say that something shares (pallidly) in His Goodness or another of the transcendental properties of being. These appear to be the terms in which authors like Alexander of Hales, who speaks of the soul as “imago Dei,” or Bonaventure, for whom the soul possesses “principia per se nota,” handle analogy. And analogy is not so much a pathway to knowledge as a proportion known by illumination (see Lyttkens 1952: 123–153).
Otherwise we must take experience as our starting point, in which case the analogia entis is reduced to the rational demonstration of God’s existence, or to the formula that basically reiterates Thomas’s five ways: given a chain of cause and effect in the world, ergo there must exist a causeless first cause. Apart from the fatal weakness of the argument (the ergo that leads up to the final conclusion is exactly what was supposed to be proved—that is, just as the things of the world suppose a chain of causes and effects, so the chain of causes and effects of the world supposes an otherworldly cause—an argument that fails to withstand Kant’s criticism), we should note that what the five ways tell us at the most is that God must exist, not what God is like.