Thank you, AntiVirus. Good idea.
For the holy scriptures, it was more of proving religions (IE, fulfilled prophecies), but also a horrible contradiction would be disproving. For example, if men and angels were created in God's perfect image, and Satan was an evil angel who was created, where did sin come from? Of course, there's a counter-point too. We were never forced to follow God, and were all given free will. The angels, however, knew about the posibility of going against God and men didn't, so the angels had to sin first.