"Mr Newman's conversion to Romanism," says Dr Wordsworth, "was accompanied, as I have said, by the publication of his _Essay on Development_, which is intended to declare the grounds of his change. But it so happens that, in this volume, he has inflicted a severe wound on the Papacy. Its very name is ominous against it. What is Development? The explication and evolution of something that was wrapped up in embryo. St Paul gives us a very pertinent illustration of this process with respect to doctrine. He speaks of a Mystery. What is a Mystery? A thing concealed, _undeveloped_. He speaks of a Mystery of _Iniquity_--or rather, of lawlessness ([Greek:anomia]) He says that this mystery is already at work, like leaven, secretly fermenting the mass in which it is; and he adds, that in time it will be developed. "Let us apply this to the fundamental doctrine of Romanism, viz., the Pope's supremacy. 'On this doctrine,' says Cardinal Bellarmine, 'the whole cause of Christianity' (he means Romish Christianity) 'depends.' Let us now turn to the essayist. He allows (indeed, with his well-stored mind he could not do otherwise) that, in the first ages of the Church, this doctrine existed only in a seminal form; that is, it was a _mystery_. 'First the power of the Bishop awoke, then the power of the Pope,' (p. 165.) 'Apostles are harbingers of Popes,' (p. 124.) Again, (p. 319,) 'Christianity developed in the form first of a Catholic, then of a Papal Church.' So that, in fact, the primitive ages of the Church--the purest, the apostolic times--did not hold _that_ doctrine on which the 'cause of _your_ Christianity depends.' (Dr Wordsworth is writing to M. Condon, author of _Mouvement Réligieux en Angleterre_.) And thus you are brought into the company of those _heretics_ of whom Tertullian writes, 'that they were wont to say that the Apostles were not acquainted with all Christian doctrine, or that they did not declare it fully to the world; not perceiving that, by these assertions, they exposed Christ himself to obloquy, for having chosen men who were either ill-informed, or else not honest.' Let me remind you also, my dear sir, of the words of a greater than Tertullian. Our blessed Lord himself says to his Apostles, '_All_ things that I have heard of my Father I have made known unto you;' and that the 'Holy Spirit should _teach them all_ things, and guide them into all truth, and bring all things to their remembrance, whatever he had said unto them.' And he orders them to proclaim to the world what they had heard from him: 'What I tell you in darkness, that speak ye in light; and what ye hear in the ear, that preach ye upon the house-tops.' 'Teach all nations _all things_ whatsoever I have commanded you.' And accordingly, St John witnesses, that Christ's true disciples 'have an unction from the Holy One, and know _all things_;' and St Paul, as a faithful steward of his Lord's house, the church,