From a scientific perspective, the text is very rich and shows somewhat chronological evolution of beliefs and society systems. Coupled with responses to catastrophic events/influences, like the Babylonian captivity influencing what heaven and hell were understood to be, there’s a lot to study/research. There are many university courses on the subject that are not a religious class.
I think the part i find interesting is it seems like we have a better picture of how the mythology shifted over time and was interpreted by different groups than we do with greek and norse mythology. So not just the stories themselves but how they were adapted in different contexts.
I dont actually know that much about the subject. Recently this video on youtube popped up for me about early history of what would later become the abrahamic religions, and i was just kind of fascinated by it https://youtu.be/mdKst8zeh-U?si=nhdcZJAnQlRPQVv6