Previous stages which we have been able to recognise in the development of Israel's religion do not carry us on to Amos by so inevitable a movement, that his message could be predicted as the next stage to be reached. When we come fresh from the investigation of the religion held by the leaders of the people in the times of David and Solomon, we recognise the immense strides made when we open the Book of Amos. We can trace a likeness between Elijah and Amos in their denunciation of wrong; but, in the sphere of religion, there is a great gulf between them which no records of the intervening period quite help us to bridge over. We cannot think of Amos taking part in the great vindication of Carmel; it is probable that he would have recognised it as useless. In Samuel, Elijah and Elisha we undoubtedly have the religious ancestors of the Literary Prophets, but while they stood at the head of popular movements which they led in triumph against the intrusion of alien faiths, the Prophets that we are now to study stand in decided antagonism to the popular faith, and the conceptions of Israel's religion which they reiterate with such passion and insistency were never acceptable to the people. Their religion has to make its way against the national religion. The importance of the Prophets is the natural starting point for the modern study of the Old Testament, and it is from the earnest perusal of their writings that modern Biblical science has been forced to take up a rigorous criticism of the entire literature of the Old Testament. Under the old methods, the Prophets had only a secondary position in the history of the ancient revelation, since their message was conceived as rather concerned with an age yet to come than with their own times and needs. The Divine Law had already been given to the people, constituting a perfect norm of religion. When the people failed to obey the Law, then the Prophet appeared, enforced its principles, and condemned the people's apostasy. If that message was rejected, as it often was, then nothing was left for the Prophet but the proclamation of vengeance, or the prediction of a time when the Law should be ideally fulfilled by the revelation of the Gospel. Between the Law and the Gospel, therefore, stood the Prophets, but they acted only as a bridge from the one to the other. The natural method of studying their writings was to search for the fulfilment of their predictions in history. With these aims it was perhaps inevitable that their words should often be interpreted in a quite unwarrantable manner; events were read back into their prophecies, or the fulfilment was found in such ordinary coincidences that the dignity of prediction was itself lost, the study became puerile and morbid, while a fancied necessity as to what they must mean prevented any scholarly and unbiassed interpretation. Their works have consequently been largely used as mysterious oracles from which the future history