Abstract

In order for God to be simple, He must be esse itself, but in some texts Aquinas seems to distinguish between esse and id quod est, so it seems that God cannot be an id quod est. To resolve this tension, Eleonore Stump proposes quantum theology, whereby we are able to attribute contradictory predicates to a thing of which we have no quidditative knowledge; so God then can be seen as esse itself and as an ens. In this paper I criticise this approach and hold that there is a principled philosophical approach that we can take to these matters through a greater clarification of what it means for God to be pure esse. It is seen that this latter approach entails that God is indeed an ens, so that the ens-hood of God is derived from His being pure esse, in which case quantum theology is not needed for a Thomistic resolution of the problem.