Augustine of Hippo
Catena Aurea · Matthäusevangelium 24
Then if any man shall say unto you, Lo, here is Christ, or there; believe it not. For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. Behold, I have told you before. Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not. For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be. For wheresoever the carcase is, there will the eagles be gathered together.
(de Trin. iii. 8.) Yet are we not therefore to think that this visible material world attends the nod of the disobedient angels, but rather the power is given them of God. Nor are we to suppose that such evil angels have creative power, but by their spirituality they know the seeds of things which are hidden from us, and these they secretly scatter by suitable adaptations of the elements, and so they give occasion both to the whole being, and the more rapid increase of substances. For so there are many men who know what sort of creatures use to be generated out of certain herbs, meats, juices and humours, bruised and mingled together in a certain fashion; save only that it is harder for men to do these things, inasmuch as they lack that subtlety of sense, and penetrativeness of body in their limbs dull and of earthly mould.