And that was it? [Alucard's eyebrows lift, deeply unimpressed by this introduction. He sighs, pausing to rub at the bridge of his nose. He'll say one thing for Belmonts: at least they had a good overview of things.]

What you recieved was woefully inadequate and quite frankly, unhelpful. I'll lay my bias out here clearly before I begin: religion led to my mother's murder and the disasters that happened after. I do not look upon the priests kindly. Their institution brings out the worst in men.

[That's that. Alucard then reaches for the bible and opens it, paging through a few thin sheets. That's a fine point to begin.]

This isn't close to the sole basis of a world's reality. It is the basis for two religions of many more. The first part of this book [he pats the pages to the left] apply to only one faith. The second half, here, was written some time after the first, and those individuals - they identify themselves as Christians - take the whole book as true. Regardless, both faiths see the text as either divinely inspired or the literal word of their god. That's a theological debate for another time.

That's also the other part of your problem here. Lucifer, demons, the questions of the afterlife, those are developed over centuries in commentaries and theological writings extrapolated from the text. Then those become part of a theological debate, usually among priests in the case of Christianity. Their priesthood - limited to men for theological reasons - then preaches the general interpretations to the masses and so things are further distributed and you can see how it goes from there.

[He breathes out, then tilts his head.] Is that more useful?