What always puzzles me is that I'll bet every single person on this thread, given a copy of Caesar's Gallic Wars, would nod sagely and accept it as fact and history. The same people, given a copy of Luke's gospel, or Acts, would probably sneer "Balderdash! Fiction!"
But why! There is far more documentary evidence for Luke than for Caesar. No, the problem is that Caesar throwing armies at bulwarks admirably fortified by nature is credible to the human mind, whereas Jesus performing miracles, turning water into wine, rising from the dead, isn't. Why does that discredit it? Shouldn't God be allowed a few party tricks.
If what Luke wrote is close to the truth (and why should it not be?), then the consequences are simply staggering.