Why would God write a book of lies and why would you worship such a being?

Hello foreveryoung, nice to meet you. Most probably, this is the case. There are probably some things that can be demonstrated to be true, i.e. Jerusalem exists. But for the more "miraculous" stuff, I'd say it comes down to personal preference. One wants to believe there is a god, and that he can do certain things (mostly because they were taught this belief as a child), the bible describes some of the things one imagines this god could do, and so, one believes those parts of the bible. Things can be learned from stories, even if they aren't true. Some of the lessons of Jesus are quite good, in my opinnion. Whether he existed or not is irrelevant to the fact that those stories convey a certain meaning. It's that meaning that can be of value, and the ultimate purpose of the stories, I'd say.

If they are wrong about that, maybe they are wrong about the need to be saved? Why Assume the need to be saved first, and then assume Jesus' sacrifice to be insufficien?. Why not assume there's no need for salvation, see the lessons Jesus taught and learn from them?

Or none of them are? Maybe they all contain fragments of the true word, with fallible people recording what they interpretted? Meaning that none of them are the "one true word", but also, they can't all be dismissed as absolutely not the "one true word".