Anyway, I was reading something recently, at they have a point. Let me know what you think-

The Bible has credibility because-
1. It was influenced by God Himself *
2. It was written by several authors
3. It has a high moral standard
4. It has changed peoples' lives

Three Things That Point to God
1. We have a design, so we must have a designer
2. We have morals, so there must be a moral law giver
3. We have logical minds, so there must be a higher Intellect

* 1 Timothy 6:3-4 tells that those who are false teachers have a desire to quibble with the meanings of words and stir up arguments.
"For the word of the Lord holds true, and everything he does is worthy of our trust." - Psalm 33:4
(There's another I need to find in 1 Timothy, but I forgot where it was.