Just a thought which came from your closing sentance there:

“So we might ask: How can the church exploit or subvert the macrocosm for the sake of the micrcosm?”

Which led me to re-read the whole thing and question a basic assumption which I think (sorry if I am mistaken) I found in your explanation of the narrative. Everytime God destroys the old creation and starts afresh, does he do this in order to establish the ideal within the microcosm? Or in order to establish this ideal, in order that the microcosm would inspire, and lead the rest of creation (the environment, those outside of it etc) towards this ideal?