2. If the Exile was opportunity to the scribes, it can only have been despair to the priests. In this foreign land the nation was unclean; none of the old sacrifice or ritual was valid, and the people were reduced to the simplest elements of religion--prayer, fasting and the reading of religious books. We shall find our prophecy noting the clamour of the exiles to God for _ordinances of righteousness_--that is, for the institution of legal and valid rites.[31] But the great lesson, which prophecy brings to the people of the Exile, is that pardon and restoration to God's favour are won only by waiting upon Him with all the heart. It was possible, of course, to observe some forms; to gather at intervals to inquire of the Lord, to keep the Sabbath, and to keep fasts. The first of these practices, out of which the synagogue probably took its rise, is noted by our prophet,[32] and he enforces Sabbath-keeping with words, that add the blessing of prophecy to the law's ancient sanction of that institution. Four annual fasts were instituted in memory of the dark days of Jerusalem--the day of the beginning of Nebuchadrezzar's siege in the tenth month, the day of the capture in the fourth month, the day of the destruction in the fifth month, and the day of Gedaliah's murder in the tenth month. It might have been thought, that solemn anniversaries of a disaster so recent and still unrepaired would be kept with sincerity; but our prophet illustrates how soon even the most outraged feelings may grow formal, and how on their days of special humiliation, while their captivity was still real, the exiles could oppress their own bondsmen and debtors. But there is no religious practice of this epoch more apparent through our prophecies than the reading of Scripture. Israel's hope was neither in sacrifice, nor in temple, nor in vision nor in lot, but in God's written Word; and when a new prophet arose like the one we are about to study, he did not appeal for his authorisation, as previous prophets had done, to the fact of his call or inspiration, but it was enough for him to point to some former word of God, and cry, "See! at last the day has dawned for the fulfilment of that." Throughout Second Isaiah this is what the anonymous prophet cares to establish--that the facts of to-day fit the promise of yesterday. We shall not understand our great prophecy unless we realise a people rising from fifty years' close study of Scripture, in strained expectation of its immediate fulfilment.