I truly meant it in the OP when I said I've never met someone as faithful as my father. The man lives his life by the good book. He is very annoyed by religious hypocrites and while he doesn't like to comment on others failings (as he himself mentions, he also sins) he is very quick to stop individuals who are grandstanding on Christianity while being awful Christians. He very much does not like virtue signalling people because of his belief in humility.