The devil then hath this great advantage by error, that if he can but corrupt the minds of men, especially in the more weighty and fundamental points of religion, then by a great ease and without any more labour he hath gained them to the practice of whatsoever these corrupted principles will lead unto. No course can be taken that with greater expedition and prevalency can introduce profane debaucheries than this. Thus he conquers parties and multitudes, as a victorious general takes cities and whole countries, by surrender; whereas his particular temptations to sin are but inconsiderable, less successful _picqueerings_[218] in comparison; and when he hath once corrupted the understandings of men, he hath by that means a command over their consciences, and doth not now urge to evil in the notion of a devil or tempter, but as an angel of light, or rather as a usurper of divine authority. He requires, he commands these wicked practices as necessary duties, or at least gives a liberty therein, as being harmless allowances. This difference was of old observed in Satan’s management of persecution and error, that in the former he did compel men to deny Christ, but by the latter he did teach them. _In persecutione cogit homines negare Christum, nunc docet._ That the lives and practices of men are so concerned by corrupt doctrines, may appear to any that are but indifferently acquainted with Scripture or history. We are told by the apostle Paul that faith and conscience stand so related to each other that they live and die together, and that when the one is shipwrecked the other is drowned for company, 1 Tim. i. 19. In Phil. iii. 2, he seems severely harsh against those of the concision; he calls them dogs, ‘Beware of dogs; beware of evil workers.’ The reason of which expression I apprehend lies not so much in these resemblances, that dogs spoil the flock by devouring, or that they are fawning creatures, or that they are industrious in prosecution of their prey,—though in all these particulars false teachers may be compared to dogs, for they spare not the flock, they compass sea and land to gain disciples, and they entice them with fair speeches,—but rather he intends the similitude to express the profane life and carriage of these seducers, for dogs are filthy creatures, to a proverb, ‘The dog to his vomit.’ And common prostitutes, for their uncleanness, were called dogs in the Old Testament. So some expound Deut. xxiii. 18, ‘The hire of a whore, or the price of a dog.’ And we have full and clear descriptions of seducers from their wicked and abominable practices: 2 Peter ii. 10, ‘They that walk after the flesh, in the lust of uncleanness, and despise government; presumptuous are they, self-willed, they are not afraid to speak evil of dignities: ver. 14, ‘Having eyes full of adultery, and that cannot cease from sin; an heart exercised with covetous practices; cursed children:’ ver. 18,