BOOK TENTH.

spiritual part of their soul shall not indeed return to the Father, but shall dwell among the ethereal gods above the aerial regions. But such fancies are not listened to by the multitudes of men whom Christ came to set free from the tyranny of demons. For in Him they have the most gracious cleansing, in which mind, spirit, and body alike participate. For, in order that He might heal the whole man from the plague of sin, He took without sin the whole human nature. Would that you had known Him, and would that you had committed yourself for healing to Him rather than to your own frail and infirm human virtue, or to pernicious and curious arts! He would not have deceived you; for Him your own oracles, on your own showing, acknowledged holy and immortal. It is of Him, too, that the most famous poet speaks, poetically indeed, since he applies it to the person of another, yet truly, if you refer it to Christ, saying, "Under thine auspices, if any traces of our crimes remain, they shall be obliterated, and earth freed from its perpetual fear."³⁸⁶ By which he indicates that, by reason of the infirmity which attaches to this life, the greatest progress in virtue and righteousness leaves room for the existence, if not of crimes, yet of the traces of crimes, which are obliterated only by that Saviour of whom this verse speaks. For that he did not say this at the prompting of his own fancy, Virgil tells us in almost the last verse of that 4th Eclogue, when he says, "The last age predicted by the Cumæan sibyl has now arrived;" whence it plainly appears that this had been dictated by the Cumæan sibyl. But those theurgists, or rather demons, who assume the appearance and form of gods, pollute rather than purify the human spirit by false appearances and the delusive mockery of unsubstantial forms. How can those whose own spirit is unclean cleanse the spirit of man? Were they not unclean, they would not be bound by the incantations of an envious man, and would neither be afraid nor grudge to bestow that hollow boon which they promise. But it is sufficient for our purpose that you acknowledge that the intellectual soul, that is, our mind, cannot be justified by theurgy; and that even the spiritual or inferior part of our soul cannot by