How do you know that he didn't control every word? Because of all of the mistakes?
 What makes you think any of it was written by your god?
 How do you decide which parts to trust and which to disregard?
 Why would a god not write his crucial message to man himself? How hard could that be? Wasn't the message important enough to ensure that his message would be received accurately? Couldn't he foresee that that would cause people to doubt that he wrote any of it?
This is faith speaking.1. There are no mistakes, so the premise of your question is flawed.
2. I believe it, and it's the only book to have endured as long as it has and adopted so many followers.
3. I don't disregard any parts of it, so again the premise of your question is flawed.
4. Because He trusts man. He knows that humans can understand human concepts. Perhaps Hid concepts are for too difficult for us to understand so it needed to be 'dumbed down' for human literacy.
Did you ever read about Morton's Demon? I linked you to it twice. He's the fictional device imagined to guard the entrance to your mind and control what gets into it. Your first three comments are demonstrably incorrect, but there is no realistic hope of disabusing you of them.