Also, it does seem to me that we do have a problem with the word "created". In Psalm 19:1 it says that do see the Glory of God in the heavens. It does seem to me that we do experience God, in some sense, in the ordinariness of creation. THere seems to be a problem here in how the act of creating fits into this language.
No problem at all, since it is by His energies that the universe is created and sustained - the grace of God works "externally", everywhere. This is the rain which falls everywhere, both upon the good and the bad, as our Lord put it. As this applies to souls, it's an obvious truth - for otherwise, no one would be able to repent and become Orthodox.
The grace unique to the Church, is the internal grace, which renders the heart a source of holiness, making men into Temples - this is what is meant when you hear talk of there being "no grace outside of the Church of Christ" or that only Her mysteries "have grace."
Thus, there is no conflict with the passage you cite.
This seems to break naturally into two parts: the claim about uniqueness, and the claim about the nature of the grace of the Church.
As far as the old RC language is concerned, we seem here to be talking about "sanctifying grace". Deep in the bowels of the Catholic Encyclopedia article
on the subject, we have the following passage:
The theory of Suarez (De grat., VII, i, xxx), which is also favoured by Scripture and the Fathers, is perhaps the most plausible. In this theory sanctifying grace imparts to the soul a participation in the Divine spirituality, which no rational creature can by its own unaided powers penetrate or comprehend. It is, therefore, the office of grace to impart to the soul, in a supernatural way, that degree of spirituality which is absolutely necessary to give us an idea of God and His spirit, either here below in the shadows of earthly existence, or there above in the unveiled splendour of Heaven. If we were asked to condense all that we have thus far been considering into a definition, we would formulate the following: Sanctifying grace is "a quality strictly supernatural, inherent in the soul as a habitus, by which we are made to participate in the divine nature".
This seems nearly a statement of theosis
, without using that word. And even in the heavily Thomist CE I'm simply not seeing this supposed assignment of Grace to creation. In fact, the more I look at it the more I see the same sort distinctions being made, but with a rather different theological language.