Romans 5

"...Adam who was a type of Him who was to come." v. 14

I'm pretty sure no other religion, belief or philosophy claims that one man's sin (Adam) affected the whole future of humanity. In the same way no other religion, belief or philosophy claims that one Man's act of selflessness (Jesus) saved that same humanity.

"But the free gift is not like the transgression. For if by the transgression of the one the many died, much more did the grace of God and the gift by the grace of the one Man, Jesus Christ, abound to the many." v. 15

This chapter is filled with many verses similar to the one just stated.

Honestly, you have to believe it all or it doesn't work. The Bible, from Adam to Jesus is a love story of God and His relationship with us. There is not just Adam and original sin but there are other things: the parting of the red sea, Elijah, the virgin birth, the transfiguration, and the most important, the Resurrection of Christ, to name a few. These things - though I believe the Bible as an accurate, true account - still take faith to believe. They are supernatural. The whole Book is about the Omnipresent, Omnipotent, and Omniscient God and His care for us. It is not a philosophy book. Though filled with amazing knowledge, insight, and direction, It also needs to be looked at in It's entirety.

"But God demonstrates His own love toward us, in that while we were yet sinners, Christ died for us." v. 8 "

Then one of my favorite verses:
"...but we also exult in our tribulations, knowing that tribulation brings about perseverance, and perseverance, proven character, and proven character, hope; and hope does not disappoint, because the love of God has been poured out within our hearts through the Holy Spirit who was given to us." v. 3-5