"He was, and is yet, most likely, the wearisomest, self-righteous pharisee that ever ransacked a Bible to rake the promises to himself, and fling the curses on his neighbours"
Bible
Creative Commons Attribution Share AlikeBible - Credit: Walter J Pilsak

Joseph's religious fervour makes an appearance time and time again in Wuthering Heights. Brontë writes of it in an almost scornful manner, her contempt for his piety obvious. When the book was written, religion was still an important part of everyday life for most people in England, and growing up with a curate for a father, Emily would very likely have been exposed to people like Joseph.