That is one of the points that a movie I just watch about Christianity makes that I found very interesting. Basically, what it boils down to is this: Jesus will forgive you for any sin except one, and that is denial of the holy ghost. The holy ghost is all around you and if you don't feel it, if you don't believe it is there, if you ever start to doubt in it's existence then you may be committing the one eternal sin. Put another way, you go to hell if you think. Convienent.
On a more historical note, I found something else in this movie interesting. It talked about the beginings of Chirstianity and how Christians are very fuzzy on just what happened in the early years after jeebus's death. In particular, there is a four decade long span between his death around 33 AD to about 70 AD when the bible first mentions something that can be dated. So what happened in the 40 years between the two? The only record comes from Paul who doesn't seems to know about anything that is 'common knowledge' about jeebus's life such as his birth, the miracles, the wise men, etc. In fact, the only things he does recongnize about jeebus's life is his death and rebirth and all of that happened in a mythical plane of existence. And if that isn't great, other stories of the day about other religious figures (i.e., Pagan) follow very similiar story lines. How very very interesting.
Another thing it points out during Jeebus's life is what the heck was he doing between the ages of 18 and 30? He like disappears. Living with wolves I guess.
All in all the movie is very good and the music is great. It is pretty educational and asks some questions I wouldn't mine seeing attempted answers to in the Biblical scholar community.
In any case, on June 6th, 2006 a movie called The Beast is coming out exploring a lot of these same ideas by the guy that did the documentary I've been talking about. What a great release date for a movie called The Beast! 6-6-06. Nice.
Anyway, check out da trailers. First, we have The God Movie which is the documentary.
Check out the short clips about the movie here. The clips raise some good points on there own.
Secondly, we have The Beast.