Two books

I commented on an article I saw that mentioned the 'two books' notion that is supposed to make the Bible and contemporary interpretations of the created world (note, not the created world itself, although this is hoped to be understood, but the interpretations, which are if not completely tendentious, then at least programatic).

I know it's popular in heterodoxy, but the 'two books' idea is nonsensically overdone, in my view. One book is clearly a book: the Bible, the other is a book only by metaphor. Yet, how often are books about the metaphor book used to interpret the Bible, and the possibility of the Bible: which is a real book full of propositions, doing some interpreting of the metaphorical book is rejected?

At root, I think this position entails a philosphy that at its start fails to be informed by the Bible, and has its roots in paganistic idealism, where a non-real world is the only one the Bible is allowed to occupy; its statements of connection with this world expressly denied to enable its rejection!