The Bible is a record; it has not changed much if any over thousands of years; it could not have come together the way it did (probability)
This is false. There are many different bibles available, each with slightly different wording and events.
Absolutely. The Roman Bible we know today may be unrecognizable to ancient Christians. There are perhaps a hundred gospels that did not make the official government Bible of Rome. I have sat in the room in Ephesus where they debated the stories and chose those that best reflected Roman sensibilities. They were much less interested in what Christians believed or thought than making a holy book that was acceptable to Rome's many polytheists.