The important question has nothing to do with whether the talk in your story is sacred or profane; the only question is how it rings on the page and in your ear. If you expect it to ring true, then you must talk yourself. Even more important, you must shut up and listen to others talk.
Stephen KingThe wife whose sweetly given reply in the face of any problem would be, "Whatever you think is best, dear." Women, take note: a wife like that never needs to fear bubbling away the last of her life through a cut throat.
Stephen KingBy writing a horror novel where this inexplicable disorder takes over in our ordered lives, you make order look better by comparison. But below that, there's a part of us that responds to the Who bashing their instruments to pieces on the stage. There's a very primitive part that says, "Do it some more."
Stephen King