The official religion of Babylonia was thus the Baal-worship of the Semites engrafted on the animism of the Sumerians. It was further modified by the introduction of star-worship. How far this went back to a belief in the "spirits" of the stars, or whether it had a Semitic origin, we do not know; but it is significant that the cuneiform character which denotes "a god" is a picture of a star, and that the Babylonians were from the first a nation of star-gazers. In the astro-theology of a later date the gods of the pantheon were identified with the chief stars of the firmament, but the system was purely artificial, and must have been the invention of the priests. The religion and deities of Babylonia were adopted by the Assyrians. But in Assyria they were always somewhat of an exotic, and even the learned class invoked Assur rather than the other gods. Assur was the personification of the old capital of the country and of the nation itself, and though the scribes found an etymology for the name in that of An-sar, the primæval god of Sumerian cosmogony, the fact was always remembered. Assur was purely Semitic in his attributes, and, like Yahveh of Israel or Chemosh of Moab, was wifeless and childless. It is true that a learned scribe now and then found a wife for him among the numerous divinities of the Babylonian cult, but the discovery was never accepted, and Assur for the mass of his worshippers remained single and alone. It was through trust in him that the Assyrian kings believed their victories were gained, and it was to punish those who disbelieved in him that their campaigns were undertaken. In the worship of Assur, accordingly, a tendency to monotheism reveals itself. The tendency was even more pronounced in a certain literary school of thought in Babylonia. We have texts which resolve the deities of the popular faith into forms of one god; sometimes this is Anu of Erech, sometimes it is Merodach of Babylon. Babylonian worship necessitated a large hierarchy of priests. At the head was the high-priest, who in early times possessed temporal power and in many states was the predecessor of the king. The king, in fact, inherited his priesthood from him, and was consequently qualified to perform priestly functions. Under the high-priest there were numerous classes of ministers of the gods, such as the "anointers," whose duty it was to anoint the holy images with oil, the ordinary "priests," the "seers," and the "prophets." The prophets enjoyed high consideration; they even accompanied the army to the field, and decided whether the campaign would result in victory or defeat. Quite apart from all these were the astrologers, who did not belong to the priesthood at all. On the contrary, they professed to be men of science, and the predictions of the future which they read in the stars were founded on the records and observations of former generations.