Nor need we wonder if the speculations of philosophers have perverted the older Scriptures. Some of their brood, with their opinions, have even adulterated our new-given Christian revelation, and corrupted it into a system of philosophic doctrines, and from the one path have struck off many and inexplicable by-roads.145 And I have alluded to this, lest any one becoming acquainted with the variety of parties among us, this might seem to him to put us on a level with the philosophers, and he might condemn the truth from the different ways in which it is defended. But we at once put in a plea in bar against these tainters of our purity, asserting that this is the rule of truth which comes down from Christ by transmission through His companions, to whom we shall prove that those devisers of different doctrines are all posterior. Everything opposed to the truth has been got up from the truth itself, the spirits of error carrying on this system of opposition.
Tertullian
Apology
Chapter XLVII