Origen

“ If, then, health of body and success in life were to come to us on condition of our serving such demons, we should prefer sickness and misfortune accompanied with the consciousness of our being truly devoted to the will of God. For this is preferable to being mortally diseased in mind, and wretched through being separate and outcasts from God, though healthy in body and abounding in earthly prosperity. And we would rather go for help to one who seeks nothing whatever but the well-being of men and of all rational creatures, than to those who delight in blood and sacrificial odours. ”

“ Although, therefore, Celsus says that “we must offer sacrifices to them, in so far as they are profitable to us, for to offer them indiscriminately is not allowed by reason,” yet we are not to offer sacrifices to demons addicted to blood and odours; nor is the Divine Being to be profaned in our minds, by being brought down to the level of wicked demons. ”

“ Perhaps, when we opposed the theological teaching of Celsus in regard to oracles, and the honour done to those called gods, some one might suspect us of impiety when we alleged that these were stratagems of demoniacal powers, to draw men away to carnal indulgence. ”