C.s. Lewis said this quote
“ When the subject is sacred, proud and clever men may come to think that the outsiders who don't know it are not merely inferior to them in skill but lower in God's eyes; as the priests said, 'All that rabble who are not experts in the Torah are accursed.' and as this pride increases, the 'subject' or study which confers such privilege will grow more and more complicated, the list of things forbidden will increase, till to get through a single day without supposed sin becomes like an elaborate step-dance, and this horrible network breeds self-righteousness in some and haunting anxiety in others. ”