Book IX.
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Argument—Having in the preceding
book shown that the worship of demons must be abjured, since they
in a thousand ways proclaim themselves to be wicked spirits,
Augustin in this book meets those who allege a distinction among
demons, some being evil, while others are good; and, having
exploded this distinction, he proves that to no demon, but to
Christ alone, belongs the office of providing men with eternal
blessedness.