It was mainly focusing on the bible as a book which gives the secret power.
I think the intinsion of the movie is to let American christians and non American christians sticks to the bible again, as many young people in USA started to deviate from the bible and not stick to the bible values, and most probably the director of the movie wanted to send a message to the young American generation on the importance of the bible.
This is really very good step from the director.