This book is a revision of my dissertation accepted by the University of Queensland in May 2002 for the award of Doctor of Philosophy. The revision has been shaped in part by comments on the thesis by its examiners, Professor Kurt Rudolph of Philipps-Universität Marburg, Privatdozent Dr Ferdinand Prostmeier of the University of Regensburg, and Dr Johan Ferreira of Queensland. For their insightful and helpful criticisms I am deeply appreciative, but they have not seen this revised work and this book still reflects very much the standard of my own scholarship rather than theirs.