The three lectures contained in this volume, which were delivered in the summer of 1909 as the second annual course of the Schweich Lectures, are an attempt to tell in a simple way the story of the book of Isaiah, and are not to be regarded as a commentary upon the book. In many cases I have been content merely to indicate, by means of quotations, that view of the origin and date of particular sections which commends itself to nie, and I have made no attempt to give in detail the arguments for the theory which I have thus suggested. Had I done this, the length of the lectures would have been enormously increased, and the amount of detail would, in all probability, have tended to distract attention from the points which I desire particularly to make prominent. I have intentionally abstained from multiplying references, especially when referring to incontroverted facts which are not of vital importance to my argument. Although no discussion of the problems of the book of Isaiah can be altogether adequate which is not based on the original Hebrew, I have endeavoured, as far as possible, to keep before myself the needs of English readers.I gladly avail myself of this opportunity of expressing my thanks to several friends for help which they have kindly given in the preparation and publication of these lectures. The Rev. C. H. W. Johns, Litt.U., Master of S. Catharine's College, and formerly Fellow and Lecturer of Queens' College, Cambridge, has not only allowed me to consult him on many occasions on questions of Assyriology, but has also read through the first lecture in manuscript. To my friend and colleague, Mr. A. B. Cook, M.A., Fellow and Lecturer of Queens' College, Cambridge, and Reader in Classical Archaeology, I am indebted for much information on Greek archaeology and religion. My obligation to him is indeed much greater than might be supposed from the number of cases in which his name is directly mentioned. My thanks are also due to the Rev. W. Emery Barnes, D.D., Hulsean Professor of Divinity, and to Mr. H. Loewe, who have read these lectures in proof. It is, however, only fair to state that I alone am responsible for the opinions here set forth. For the indexes I am indebted to the willing co-operation of my daughter.