In the comments of a recent post, I was recently asked some challenging questions regarding Trinitarianism, Christology, and anthopology. In the past few years, I've mentioned several times the need for humility and balance when positing a doctrine of God (see here and pursuant links). On the one hand, I aim to do a better job of avoiding dogmatism on points of speculation. On the other hand, even in the case that answers to certain questions are underdetermined by biblical data, apologetic concerns warrant consideration of possibilities to prevent one's faith from being undercut.
In what follows, my goal is to provide answers that are faithful to Scripture insofar as they are deducible from or coherent with it. Keeping in mind that this latter qualification - coherence - is a necessary but insufficient condition for truth, the questions I was asked will be indented:
I'm trying to also keep in my the Trinity, with the three persons united in one being. Being would be identical to nature (divine nature), would it not?
On the concept of "unity," this post would provide a helpful background for my own thoughts (excepting a few uncareful remarks in the final paragraph).
I don't think the Trinity are united "in one being" if that means persons are subsumed under nature. Don't get me wrong: natures don't exist without persons, and persons do not exist without natures. Yet insofar as "nature" or "being" discusses what is common to individuals, natures belong to and are predicated of persons, not persons to natures. "Enhypostasis" - nature is in the hypostasis. If persons were "in" natures, then Christ's having two natures would seem to imply Nestorianism.
Now, the members of the Trinity are consubstantial. In fact, I think the meaning of their being consubstantial is just the same as the meaning of you and I being consubstantial, although the manner of consubstantiality differs between Trinitarian members (eternal, necessary) and us as men (temporal, contingent). Regardless, they indeed are of the same nature.
But I would balk at certain theories of divine simplicity that may be implicit in the phrasing of your question. That is, Trinitarian consubstantiality does not imply only one concrete nature. Recall that you mentioned mind is "indexed" to nature: if we subsumed the divine persons under or in a single, concrete divine nature, then, that would entail that there is just one divine mind. The problem with that - as you seem to recognize - is that it runs against biblical data suggesting the members have distinct, self-reflective thoughts (e.g. John 17). On that note:
So the mind of the Son would have self-referential propositions that the Father would not (e.g. "I am the eternally begotten one"), but that mind would not be coextensive with the person of the Son? What would be the remainder? Would it be something like the shared divine nature that extends beyond the self-referential thoughts of the mind?
While the mode of the Son's existence is eternal, He is also eternally begotten. Here is precisely where I think Clark, for example, went wrong: it is not merely that the Son thinks something of Himself that is different than His thought of the Father or Spirit; rather, this thought corresponds to something about the Son Himself. I argue Clark's rejection of the correspondence theory of truth in the 1940s led him to collapse persons into propositions/thoughts (link). I further argue I think Clark's reasons for rejecting it only pertain to a certain kind of correspondence theory of truth (link).
What I am saying, then, is that the persons of the Trinity are not simply minds - and again, since you agree minds are "indexed" to nature, that would not constitute a differentiating principle between the individual Trinitarian persons anyway. Nor are the persons the thoughts of the mind (as if it is intelligible to suggest the divine persons are products of three minds?). On the contrary, the thoughts of the persons of the Trinity about themselves reflect or correspond to something unique about the way that they themselves are: unbegotton/originate, eternally begotten/generation, eternally spirated/process. Epistemological and ontological categories should not be collapsed.
Also remember that in the original post on Clark and Nestorius, I was only attempting to provide a connotative definition of "person" in general. I was not talking individual persons/hypostases/subjects. For example, I think the Father, Son, Spirit, the angels, and humans are all "persons" because they have something in common: they each have a mind or minds. But this definition does not individuate any one individual "person" from any other. Well, that makes sense, for we agree that the having of a mind (or minds) is something properly belonging to the category of nature - not that we have the same nature as God, of course, but the overlap explains (at least partially) in what sense creaturely persons might be images of divine persons.
So what individuates individual persons/hypostases/subjects? We might posit (as Clark did) that they can be individuated by their thoughts (of themselves). In a cursory analysis, this might be sufficient. But foundationally, note again that thoughts are products of thinkers. To the extent that an individual's thoughts of himself is relevant to this question, that to which the thoughts correspond - the individual himself - is all the more so.
Let me suggest that an individual person is the correspondent of whatever may truly be predicated of him either timelessly (if His mode of existence is timeless, e.g. the Father) or at time t (if his given his mode of existence is temporal, e.g. an angel or human). What I "think" of myself is irrelevant, because my thoughts of myself are potentially false. Rather, true propositions about me (corresponding to my existence at time t) are those thoughts God thinks about me (corresponding to my existence at time t).
The above is perfectly intelligible to me. Even the case of Christ incarnate can be nuanced (example). Here is one catch, however: it suggests that the divine nature is concretized in the three persons. This should be obvious anyways if we accept a model of the Trinity on which each member of the Trinity has a distinct mind, but it should be noted. Not all (or even most) Trinitarian models would accept this. If we take Clark's definitions of thoughts/beliefs as involving volition, three concrete minds also entails three concrete wills.
Clark's own reasoning supports this, for he reject faculty psychology in the context of anthropology and Trinitarianism:
In the case of God, the simplicity of his reality should favor still more such a identification, rather than a development of divine faculty psychology. (April 3, 1937, Letter to J. Oliver Buswell)
A man is not a compound of three things, an intellect, a will, and an emotion. Each man is a single personality. (1943. On the Primacy of the Intellect. Westminster Theological Journal Vol. 5 No. 2, May. 182-195)
The question has to do with Ephesian 4 where it speaks of man’s mind being darkened. Well, I would include in the functions of mind the assent as well as the notitia, but I distinguish between the two functions. This is not faculty psychology, but it is two functions of the same spirit. (1977. A Defense of Christian Presuppositions in the Light of Non-Christian Presuppositions)
Just as in the post on "unity" I linked to above, these statements exhibit an internal inconsistency in Clark's thought. If the same spirit has two functions - assent and notitia or knowledge - then on what grounds could Clark affirm three distinct functions in one respect (self-knowledge) but not the other (assent)? If only the Son thinks "I am the Son," what does it mean to "think" if assent is not involved?
We can certainly differentiate the relationship between our persons to propositions we "know" (acquisitional, receptive) to the relationship between the Trinitarian persons and propositions they "know" (active, generative). In both cases, the objects of knowledge - truth-bearing propositions - are the same, although the psychological activity of "knowing" differs.
To reiterate, on the model I gravitate towards, the Trinitarian persons are consubstantial just as you and I are consubstantial. What it means for the divine nature to be "in" each person is the same, is true, and therefore corresponds to the existence of each person. There is just one "divine nature" that we conceptualize: all-wise, all-powerful, all-good, etc. Each member of the Trinity is all-wise, all-good, etc.
It's just that how consubstantiality cashes out is not in persons being found "in[side]" of a common nature but rather along the lines that a person who is a principle or "fount" (e.g. the Father; Adam) communicates his same nature to others who find their "origin" in him (e.g. the Son/Spirit; the rest of humanity). This bears on the unity of persons and explains the connection to traducianism, by the way, which I'll return to momentarily.
In the context of the Trinity, there is a necessary connection between the members. The property of the Father, the attributes of the divine nature He enhypostatizes, and mode of the communication of His divine nature to His Son and Spirit is such that the three persons 1) mutually depend on each other - for example, the Father is not who He is without His Son and Spirit - and 2) always act conjointly and agreeably.
A comparison could reasonably be made between 1) three distinct knowers who distinctly and reflexively index the same, objective body of propositional meaning, and 2) three distinct operators or actors who necessarily produce one and the same conjoint operation or act (which, incidentally, includes the body of propositional meaning comprised of necessary and contingent truths).
A traducian friend of mine (Ken Hamrick) uses the language of "shared agency" to describe our participation in Adam's sin while the mode of "our" being was not yet (i.e. at the time of the Fall) as individuals but as the singular nature of Adam through which he sinned and out of whom we were not yet propagated as individuals (link). I agree with him, although how we think this analogizes to the Trinity differs.
Ken would emphasize the numerical sameness of the spirit traduced to us and thereby argue for the numerical sameness of essence shared among the Trinity (link). I would emphasize that once we are propagated out of Adam, our possession of the same spirit is nevertheless concretely distinct and thereby argue that the Trinitarian persons exhibit an analogy to "shared agency" in the eternal communication of the divine nature through which the persons operate even as they are eternally individuated and individuals. As I mentioned at the outset, these are rather deep waters to stake out a dogmatic claim that one can confidently swim them.
In either model - Ken's or mine - there is an analogy one could make between Trinitarianism and traducianism. There are also disanalogies in either case, of course. For Ken, whereas we have distinct, concrete natures (albeit inherited through our fathers once we are propogated out of them into a different mode of being, i.e. as individuals), the members of the Trinity would not. On my end, the manner of consubstantiality between the Father, Son, and Spirit would be eternal and grounded in their intrapersonal relations rather than temporal (such as my relation to my father). This interesting impasse at once suggests an argumentative parallel between Trinitarianism and traducianism regardless of which one of us is correct as well as that other reasons must be given for independent support for either of our positions.
I think my model goes some way in explaining biblical texts like John 17, the covenant of redemption, and the resonance between theology proper and anthropology.
Further, on the subject of anthropology in general and traducianism in particular, I think this model (and Ken's) also avoids nominalism while affirming a realism in the contexts of original sin and justification which does not devolve into erroneous positions. For example, erroneous positions such as:
1) one wherein Christ assumes a sinful nature (cf. uncareful statements of the doctrine of original sin),
2) one wherein I am unjustly punished for sins which are really and completely alien to me (cf. representationalist theories of original sin),
3) one wherein Christ assumes and glorifies a human nature under which all persons are said to be subsumed (cf. Eastern Orthodoxy and deification, despite the protestations of its apologists to believe that natures are in hypostases rather than the reverse),
4) one wherein infused righteousness is argued as necessary for justification to be justly possible in this lifetime (cf. Roman Catholic apologists, although those who argue this are themselves inconsistent).
On several of these points, see here for more. Further potential advantages of this model are that it seems to cohere with other metaphysical ideas which have separate appeal: theistic propositional realism (i.e. divine conceptualism), a version of divine simplicity which allows for formal distinctions, an Aristotelian theory of universals, etc.
I've thought about this quite a lot, and while the above is not a full story, it's probably the best articulation I can come up with at the present. To your next question:
If by inheriting one's father's "spirit" means those immaterial attributes that he possesses (analogous to the material attributes one possesses), then I think I can get my mind around what "spirit" means. Just as our bodies are made from our parents's bodies without being identical to them, so our spirits are made from our parents's spirits without being identical to them.
But then what distinguishes mind and spirit, or are they the same?
I think they are the same. Christ assumed a body and a rational soul or spirit without assuming a person, so there is no Christological difficulty, at least. Ken has elsewhere suggested that the "spirit is the seat of the will regarding moral matters" (link), and I think this all dovetails with Clark's aforementioned thought that knowledge and assent are two functions of the same spirit.
Finally, I had written:
The separation of body and spirit is "death," and such is predicated of our persons; but so too is the separation of our spirit from the Spirit "death" also predicated of our persons... suggesting the relationship between man's body and his spirit is analogically related to the dependency of our spirit to God's Spirit?
Maybe all of this becomes simplified by looking at a case most Christians would agree with: Christians will be conscious in the intermediate state. Are these Christians still human? If so, then it appears that they just are, ontologically speaking, spirits. To say that the person experiences death is to say that his body has been separated from his spirit (i.e. himself). Men are not, ontologically speaking, composite beings, for although these spirits do normally have bodies, the separation of the normal unity between spirit and body does not ontologically change a person (spirit). Likewise, the separation of the designed unity between spirit and Spirit does not ontologically change a person (spirit). If physical death is not an ontological change, neither would be spiritual death.
Your question:
As for the subsequent post wherein you discuss the intermediate state, have you considered also that our spiritual bodies may be of a different order than our physical bodies? Paul's statements about the natural body and spiritual body are puzzling. "Adam became a living being. The last Adam became a life-giving spirit." The first man was made of the earth from dust, the last man is from heaven. Is it not safe to say that even in our present state we not "fully human" but are "incomplete" because the body we were given (even Adam's sinless body) was only the seed of what will only be completed in the resurrection? So, it may be the case that there is no ontological change since the separation of the spirit from the body in death is part of the planned transformation from natural body to spiritual body (like the seed germinating).
Did you mean to ask whether it's possible that "even in our present state we [are] not "fully human" but are "incomplete""? If so, did the incarnate and yet-be-glorified Son assume a fully human nature? Further, when this Son died and was buried (prior to His resurrection), was He fully human or not? Surely the former.
I would also keep in mind the question of whether or not the reprobate are fully human: they will experience a bodily resurrection too, but their spirit remains severed from the life-giving Spirit of God and, thus, experience a second death. These points cumulatively suggest that death entails no change in nature.
Now, my original comment was about whether is ontological change at the time of death. Here, on the other hand, I am here emphasizing that there is never a change to the human essence each of us has. Ontology is indeed a broader category than humanity, I just wanted to answer your specific questions by distinguishing between an eschatological telos and a change in nature.