Thank you for the question on the Jahvist Bible and the Elohimist Bible. As I read, it is my understanding that scholars want to dissect the Scriptures and create one Bible that uses the term YHWH and another for Elohim.
If I may ask, how would you separate the Book of Genesis into two Bible? It is likely that one has some idea of how it should be divided since one is suggesting it. Would you be willing to give examples for the first 11 chapters of Genesis so that I may see how you would divide the Bible into those two books. Thanks.
For further insight and discussion:
https://www.quora.com/Why-scholars-do-not-separate-the-Jahvist-Bible-from-the-Elohimist-Bible