David H.J.Gay writes: 'Christ fulfilled the old covenant, rendered it obsolete (Heb. 7:19,22; 8:13), and ushered in the new covenant which superseded the old. The Fathers flew in the face of this by going back to the old covenant, taking its principles and practice, and imposing old-covenant shadows on the ekklesia. By mixing the two covenants wholesale, the Fathers had set about doing precisely what Christ said was impossible; that is, forcing the new wine of the gospel - in particular, the ekklesia - back into the old, worn-out wineskins of the old covenant (Matt. 9:16-17; Mark 2:21-22; Luke 5:36-38). Well, it was possible, but only by ruining the new covenant. The Fathers compounded their error by adopting pagan ideas, turning them into Christianised paganism, it is true, but paganism all the same, and bringing those ideas into the ekklesia. All this was a disaster of the first magnitude, one which has lasted until today'. In this book, Gay tackles one of these Christendom disasters; namely, 'public worship'. A free audiobook of this title can be found on the author's sermonaudio.com page,