In Noah and his sons, so long as the earth continued of one tongue and speech, the priesthood belonged to the head of the family. That was its natural descent. We may suppose that the dispersion began with the same rule, but we are not able to say how long that rule continued in force. There was intended to be one priesthood offering one sacrifice over all the earth to the one God. How prodigious became the degradation when the divine unity was lost! A variety of gods was introduced; a similar variety of priesthoods followed: and the sacrifice, which was the rendering of supreme homage to the one Creator and Lord of life, in which was contained the everliving prophecy of man's future restoration, was prostituted to a number of deities, the offspring of man's sensual imagination, or of perverted tradition, or of worship of natural powers, or of demoniacal trickery. As soon as the patriarchal State was changed by war into the State founded by conquest, the natural appurtenance of the priesthood to the head of the family must at least have been modified. It was probably often attached to the actual head of the State. But it does not need to trace step by step the debasement of worship and the multiplication of deities which took place in the Gentile world. It is enough to see how the whole mass of nations had by the time of Christ become divided from each other in their civil societies and their religious belief. But we may note that as with the loss of belief in one God the nations originally lost the belief in their own brotherhood, so their national gods became the stronghold of national prejudices and hatreds. Thus a debased religion was turned into a source of cruelty to man, who had no bitterer enemy to his life and welfare than a foreign god; and instead of human life being sacred to man, it was sometimes even an act of worship to immolate him to an idol. It is not too much to say that the profound enmity of the Gentile nations to each other was grounded in the variety of their gods; and in this instance religion, which in its purity is the bond of human society, had become a main cause of alienation between the members of the race. The alliance of the State in each nation with its religion was, as we have seen, an original good of the race; and it continued through all the debasement of worship. Had that worship maintained its original purity, the alliance would have been an unmixed good. But as the belief became corrupt, it ended in the public force being ever at the command of error. The final issue of this alliance seems to have been when the State had laid hold of religion to deify, as it were, itself. The Roman emperors were the most complete, but by no means the sole, bearers of this corruption. They were considered to embody in their single persons the united majesty of the gods. Whoever refused obedience to their worship was guilty of the double crime of sacrilege and treason.