That this great change was mainly the result of the residence in Babylon and of truths learned there, must be denied by all who remember the creed and doctrine about God, which in their literature the people carried with them into exile. The law was already written, and the whole nation had sworn to it: _Hear, O Israel, Jehovah our God; Jehovah is One, and thou shalt worship Jehovah thy God with all thine heart, and with all thy soul, and with all thy strength._ These words, it is true, may be so strictly interpreted as to mean no more than that there was one God for Israel: other gods might exist, but Jehovah was Sole Deity for His people. It is maintained that such a view receives some support from the custom of prophets, who, while they affirmed Jehovah's supremacy, talked of other gods as if they were real existences. But argument from this habit of the prophets is precarious: such a mode of speech may have been a mere accommodation to a popular point of view. And, surely, we have only to recall what Isaiah and Jeremiah had uttered concerning Jehovah's Godhead, to be persuaded that Israel's monotheism, before the beginning of the Exile, was a far more broad and spiritual faith than the mere belief that Jehovah was the Sovereign Deity of the nation, or the satisfaction of the desires of Jewish hearts alone. Righteousness was not coincident with Israel's life and interest; righteousness was universally supreme, and it was in righteousness that Isaiah saw Jehovah exalted.[17] There is no more prevailing witness to the unity of God than the conscience, which in this matter takes far precedence of the intellect; and it was on the testimony of conscience that the prophets based Israel's monotheism. Yet they did not omit to enlist the reason as well. Isaiah and Jeremiah delight to draw deductions from the reasonableness of Jehovah's working in nature to the reasonableness of His processes in history,--analogies which could not fail to impress both intellect and imagination with the fact that men inhabit a universe, that One is the will and mind which works in all things. But to this training of conscience and reason, the Jews, at the beginning of the Exile, felt the addition of another considerable influence. Their history lay at last complete, and their conscience was at leisure from the making of its details to survey it as a whole. That long past, seen now by undazzled eyes from under the shadow of exile, presented through all its changing fortunes a single and a definite course. One was the intention of it, one its judgement from first to last. The Jew saw in it nothing but righteousness, the quality of a God, who spake the same word from the beginning, who never broke His word, and who at last had summoned to its fulfilment the greatest of the world-powers. In those historical books, which were collected and edited during the Exile, we observe each of the kings and generations of Israel, in their turn,