It is evident that it will be long before more than a fraction of this vast and ever-accumulating literature can be adequately studied. And what adds to the difficulty is that it is still increasing year by year. At present there are as many as three exploring expeditions in Babylonia. M. de Sarzec's successor on behalf of the French Government is still carrying on work at Tello, the ancient Lagas, which was begun as far back as 1877; the Americans are continuing their excavations at Nippur, where, ever since 1888, they have been excavating for the first time on a thoroughly systematic and scientific plan; and now the Germans have commenced work at Babylon itself, and have already fixed the site of the temple of Bel-Merodach and of that palace of Nebuchadrezzar in which Alexander the Great died.(203) Even while I am writing, the news has come of the discovery of a great library at Nippur, which seems to have been buried under the ruins of the building in which it was kept as far back as the Abrahamic age. The mounds in which it has been found lie to the south-west of the great temple of Bel. Already nearly 20,000 tablets have been rescued from it, and it is calculated that at least 130,000 are yet to be disinterred. The tablets lie in order upon the clay shelves on which they were arranged in the days of Khammurabi, the Amraphel of Genesis;(204) and, so far as they have been examined by Professor Hilprecht, it would appear that they relate to all the various branches of knowledge which were known and studied at the time. History, chronology, religion and literature, philology and law, are all alike represented in them. When we remember that the catastrophe which overwhelmed them occurred more than two thousand years before the Christian era, we may well ask what new and unexpected information the future has in store for us, and hesitate about coming to conclusions which the discovery of to-morrow may overthrow. We know but a tithe of what the monuments of Babylonia have yet to reveal to us, and much that we seem to know to-day will be profoundly modified by the knowledge we shall hereafter possess.
The imperfection of his materials places the student of Babylonian religion at a greater disadvantage than the student of Babylonian history or social life. The facts once obtained in the field of history or of social life remain permanently secured; the theories based upon them may have to be changed, but the facts themselves have been acquired by science once for all. But a religious fact is to a large extent a matter of interpretation, and the interpretation depends upon the amount of the evidence at our disposal as well as upon the character of the evidence itself. Moreover, the history of religion is a history of spiritual and intellectual development; it deals with ideas and dogmas which shift and change with the process of the ages, and take as it were the colour of each succeeding century. The history of religion transports us out of what German metaphysicians would call the "objective" world into the "subjective" world of thought and belief; it is not sufficient to know the literal meaning of its technical terms, or the mere order and arrangement of its rites and ceremonies; we have to discover what were the religious conceptions that were connected with the terms, and the dogmas that underlay the performance of a particular rite. A mere barren list of divine names and titles, or even the assurance that theology had identified certain gods with one another, will not carry us very far; at most they are but the dry bones of a theological system, which must be made to live before they can tell us what that system actually was.