Hello and welcome!
It seems to me if God had wanted to provide humanity a perfectly clear instruction manual, all He needed to do was preserve the tablets of Moses until the age of the Internet could broadcast them to everyone. Or even photocopiers, for that matter.
But the invention of copying technology is not so new as all that: it was one of the unique advantages of tablet-based writing technology that you could make a new imprint of it any time you wanted.
So what does it say about the Bible that it is so obviously the work of human hands? Is it possible that it is more about people, and people’s relationship with God, than it is about God’s self?