And as the Gentiles did vulgarly conceive the imagery of the brain, for things really subsistent without them, and not dependent on the fancy, and out of them framed their opinions of “demons,” good and evil; which because they seemed to subsist really, they called “substances”; and, because they could not feel them with their hands, “incorporeal”: so also the Jews upon the same ground, without anything in the Old Testament that constrained them thereunto, had generally an opinion, except the sect of the Sadducees, that those apparitions which it pleased God sometimes to produce in the fancy of men, for His own service, and therefore called them His “angels,” were substances, not dependent on the fancy, but permanent creatures of God; whereof those which they thought were good to them, they esteemed the “angels of God,” and those they thought would hurt them, they called “evil angels,” or evil spirits. Such as was the spirit of Python, and the spirits of madmen, of lunatics, and epileptics, for they esteemed such as were troubled with such diseases, “demoniacs.”