Language is a theme in the whole book, no? I mean it ends with the title poem about words are all we have. I guess midrash makes sense. How does it change in the course of the sequence? Well, God is into No and into Stasis/Nouns. Adam and Eve, in order to be in this world (and get this world going) must choose verbs. Which is to gain sex but also to choose death and all else that goes with change. To choose becoming over being.