Luther, Ontology and Rigid Designation

I had a conversation yesterday with someone following this blog about whether or not yesterday's post Luther, God, and Rigid Designation, somehow was in conflict with the things I have earlier said about Luther and ontology. I want to clarify.

To say that the locution 'aliquid quo nihil maius cogitare possit' fails to conform to the semantic situation presupposed by the potentia dei absoluta, is not to argue a different metaphysical or ontological point than I have previously made. We must distinguish from divine states of affairs and how they states of affairs are referred to or picked out. My point was that 'aliquid quo nihil maius cogitare possit' fails to allow projections of this God of Christianity into counterfactual situations like the following: 'God might have not willed theft to be a sin'. Clearly, the Nominalist insight is that it is of the nature of God that He could have done other than what He in fact did do. Accordingly, it is not necessary that God would have established a covenant with his Chosen People. It is precisely this radical contingency within the deus nudus that forms part of the experience, I think, of the deus absconditus. God in his awe-full majesty is at work in the apparent contingency of the world. The contour of His unbridled, but hidden will, cannot be domesticated by human thought and rationality.

This being said, God has from among possible worlds actualized this world, a world in which He is present in Christ as provident and beneficient. It is in this world that God is known to be constituted as Trinity. But once this fact is known, we can claim that this God is a Trinitarian God in all possible worlds. While 'that which none greater can be thought' picks out the Trinitarian God contingently, the locution does not constitute the essence of this God. Analogous to Kripke on the essence of water, we might say that the essence of God is to be Trinitarian, and mean by that that in possible worlds where Trinity is not established, neither is God, that is to say, in all possible worlds, the Trinity is instantiated if and only if God is instantiated.

None of what I say here undercuts that claim that God has a particular nature, an ontological contour, and that the truth-conditions of theological language, with appropriate qualification, allow for this contour either to be rightly or wrongly stated. In other words, the notion that 'God' could be understood as a rigid designator is fully consonant with the assertion that Luther was both a theological and semantic realist, that he held that God exists apart from human awareness, perception, conception and language, and that language about this God is in principle capable of being true or false. What is lost in the semantic content of rigid designation is, in fact, gained in the metaphysical situation. Ontologically, one can be as robust as one wants, as long as 'necessity' as applied to God is not understood as logical or conceptual necessity, but as an intraworldly metaphysical necessity.

In other words, what I was trying to suggest in Luther, God and Rigid Designation is that the semantic notion of a rigid designator might be helpful in thinking through the radical freedom of God presupposed in late medieval Nominalism, and insofar as that divine freedom was, in fact, presupposed by Luther. I still claim that Luther is not a radical nominalist when it comes to his thinking about God, particularly his Christological thinking. Here, it does seem to me, that he needs to grant ontological status to natures, and cannot merely reduce them adverbially to ways in which the one divine-human entity is constituted or behaves.

I hope this clarifies the matter.