Faith in Fantasy
Ah the moral quandary of using faith and religion in a work of fiction. No matter how hard you try to avoid it, someone is going to get offended. Start toying with demons and angels (The Unseen) too, and you’re in for some flak. I guess its safer to go pure fantasy, because if you stray too close to home there can be some real dilemmas in how to portray entities that a sizeable part of our population has vested interest in.
The only thing worse than upsetting people by portraying their beliefs inaccurately is upsetting people by portraying their faith too accurately.