the early Semitic conquerors were sufficiently akin in spirit to the Sumerians to take over the religion of the Mesopotamian civilization they subjugated without any profound alteration. Egypt was never indeed subjugated to the extent of a religious revolution. Under the Ptolemies and under the Cæsars, her temples and altars and priesthoods remained essentially Egyptian.
So long as conquests went on between people of similar social and religious habits it was possible to get over the clash between the god of this temple and region and the god of that by a process of grouping or assimilation. If the two gods were alike in character they were identified. It was really the same god under another name, said the priests and the people. This fusion of gods is called theocrasia; and the age of the great conquests of the thousand years B.C. was an age of theocrasia. Over wide areas the local gods were displaced by, or rather they were swallowed up in, a general god. So that when at last Hebrew prophets in Babylon proclaimed one God of Righteousness in all the earth men’s minds were fully prepared for that idea.
But often the gods were too dissimilar for such an assimilation, and then they were grouped together in some plausible relationship. A female god - and the Ægean world before the coming of the Greek was much addicted to Mother Gods—would be married to a male god, and an animal god or a star god would be humanized and the animal or astronomical aspect, the serpent or the sun or the star, made into an ornament or a symbol. Or the god of a defeated people would become a malignant antagonist to the brighter gods. The history of theology is full of such adaptations, compromises and rationalizations of once local gods.
As Egypt developed from city states into one united kingdom there was much of this theocrasia. The chief god so to speak was Osiris, a sacrificial harvest god of whom Pharaoh was supposed to be the earthly