Because the man has managed to reject the advances of every woman in Gainesville. Via Clay Travis at SEC Media Days;

Tim Tebow, flawless, he's saving himself for marriage. Just asked, confirmed.

I'm not about to knock someone for saving themselves for marriage, but this explains so much about Tebow. Just like George Costanza was a genius when he stopped thinking about sex (an episode called "The Abstinence"), a virgin Tebow is the Ultimate Football Player. I cannot imagine the lengths women in SEC cities will go to conquer the senior quarterback.

At this point though, he has to stay unsullied. Otherwise, he could be our Samson and the entire fanbase will be out searching for Delilah.