The centre of the Book of Isaiah (chaps. xiii. to xxiii.) is occupied by a number of long and short prophecies which are a fertile source of perplexity to the conscientious reader of the Bible. With the exhilaration of one who traverses plain roads and beholds vast prospects, he has passed through the opening chapters of the book as far as the end of the twelfth; and he may look forward to enjoying a similar experience when he reaches those other clear stretches of vision from the twenty-fourth to the twenty-seventh and from the thirtieth to the thirty-second. But here he loses himself among a series of prophecies obscure in themselves and without obvious relation to one another. The subjects of them are the nations, tribes and cities with which in Isaiah's day, by war or treaty or common fear in face of the Assyrian conquest, Judah was being brought into contact. There are none of the familiar names of the land and tribes of Israel which meet the reader in other obscure prophecies and lighten their darkness with the face of a friend. The names and allusions are foreign, some of them the names of tribes long since extinct, and of places which it is no more possible to identify. It is a very jungle of prophecy, in which, without much Gospel or geographical light, we have to grope our way, thankful for an occasional gleam of the picturesque--a sandstorm in the desert, the forsaken ruins of Babylon haunted by wild beasts, a view of Egypt's canals or Phœnicia's harbours, a glimpse of an Arab raid or of a grave Ethiopian embassy. But in order to understand the Book of Isaiah, in order to understand Isaiah himself in some of the largest of his activities and hopes, we must traverse this thicket. It would be tedious and unprofitable to search every corner of it. We propose, therefore, to give a list of the various oracles, with their dates and titles, for the guidance of Bible-readers, then to take three representative texts and gather the meaning of all the oracles round them. First, however, two of the prophecies must be put aside. The twenty-second chapter does not refer to a foreign State, but to Jerusalem itself; and the large prophecy which opens the series (chaps. xiii.-xiv. 23) deals with the overthrow of Babylon in circumstances that did not arise till long after Isaiah's time, and so falls to be considered by us along with similar prophecies at the close of this volume. (See Book V.) All the rest of these chapters--xiv.-xxi. and xxiii.--refer to Isaiah's own day. They were delivered by the prophet at various times throughout his career; but the most of them evidently date from immediately after the year 705, when, on the death of Sargon, there was a general rebellion of the Assyrian vassals. 1. xiv. 24-27. OATH OF JEHOVAH that the Assyrian shall be broken. Probable date, towards 701.