They’re not really biblical in the sense that they’re about the Christian Bible, although they’re certainly religious (in the sense that the main character is developing a new religion focused on long term survival of humanity). They’re sci-fi books set in the near future of the US, basically during end stage capitalism. It’s hard to give an exact summary because those books are about a lot, but I would say primarily they’re about the importance of empathy and community.
Thanks. I’ll check them out. I do have to add, though, that knowing the biblical parables has my head spinning with curiosity at this point!