But, by the fall, Adam became likewise the Priest in his family. We learn from the narrative of Cain and Abel that the worship of God by sacrifice had been instituted, and it is not obscurely intimated that it was instituted even before he was cast out of paradise, since God Himself clothed Adam and Eve with skins of beasts, which, doubtless, were slain in sacrifice, since they were not used for food.[7] The rite of bloody sacrifice, utterly unintelligible without the notion of sin, and inconceivable without a positive divine institution, so precise in its formularies about the statement of sin, and the need of expiation, is an everliving prophecy of the great sacrifice which God had intended "before the foundation of the world," and a token of the knowledge which He had communicated to Adam before he became a father. Unfallen man needed to make no sacrifice, but only the triple offering of adoration, thanksgiving, and prayer. These Adam would have given before he fell; after his fall he became a priest, and the bloody sacrifice to God of His own creatures, a mode of propitiating God which man could never have invented or imagined of himself, is a token of the ritual enjoined upon him, and of the faith which it symbolised and perpetuated. Such, then, was the condition of the children of Adam, the first human society, in those "many days" which passed before Cain rose up against Abel: the state of a family living in full knowledge of their own creation, being, and end, in vast security, for who was there to hurt them? worshipping God the Creator by a rite which He had ordained in token of a great promise, at their head the Father, the Teacher, and the Priest, with the triple dignity which emanates from the divine sovereignty, and makes a perfect government. The two powers which were to rule the world rested as yet undivided upon Adam after his fall. It is evident that nothing could be further from a state of savagery or barbarism, from a state of defective knowledge of God and man, and his end, than such a condition as this, which suggests itself necessarily to any one who considers attentively the sacred narrative. But as Adam in paradise was left to the exercise of his free-will, and fell out of the most guarded state of innocence by its misuse, so the first-born of Adam broke out of this secure condition of patriarchal life through the same misuse, and begun by fratricide the City of the Devil. We are told that God remonstrated with him when he fell under the influence of envy and jealousy, but in vain. He rose against his brother and slew him; he received in consequence the curse of God; "went out from his face, and dwelt a fugitive on the earth at the east side of Eden." There it is said that he built the first city, on which St. Augustine comments: "It is written of Cain that he built a city; but Abel, as a stranger and pilgrim, built none."