Would it be a bad idea if I incorporate God into my story like this?

Okay, so my mom says that the way I add God into my FANTASY noevl (well, it's not published yet so...) Isn't a very ''fictional'' and would be a bad idea. Other author's incorporate God in ways such as taking things from the Bible and then adding their own twist. The Corocles of Narnia has it, and Stephen King twisted things from the bible as well. I'm not doing that exactly. What I'm doing is adding my own trust about God. So basically after creating earth, God created a whole different universe and the creatures on this planet (yes, a planet with a species besides humans) had access to the Bible. So basically, they read about ''humans'' and some thought the Bible was false and the majority thought it was true. So these creatures were intelligent and they wanted to discover these unknown ''humans.'' That's all I'll say because I don't want to bore you with the details lol. What I'm asking is, would you read my novel if I incorporated God in it in that manner? I basically distorted the Bible by adding in that God created another universe. Is that cheap and unrealistic? Or should I go with my instinct and what I created? Thanks a million ;)