4. With respect to those, indeed, who teach differently regarding Christ from what the rule of Scripture allows, it is no idle task to ascertain whether it is from a treacherous purpose that these opposing powers, in their struggles to prevent a belief in Christ, have devised certain fabulous and impious doctrines; or whether, on hearing the word of Christ, and not being able to cast it forth from the secrecy of their conscience, nor yet to retain it pure and holy, they have, by means of vessels that were convenient to their use, and, so to speak, through their prophets, introduced various errors contrary to the rule of Christian truth. Now we are to suppose rather that apostate and refugee powers, which have departed from God out of the very wickedness of their mind and will, or from envy of those for whom there is prepared (on their becoming acquainted with the truth) an ascent to the same rank, whence they themselves had fallen, did, in order to prevent any progress of that kind, invent these errors and delusions of false doctrine. It is then clearly established, by many proofs, that while the soul of man exists in this body, it may admit different energies, i.e., operations, from a diversity of good and evil spirits. Now, of wicked spirits there is a twofold mode of operation: i.e., when they either take complete and entire possession of the mind, so as to allow their captives the power neither of understanding nor feeling; as, for instance, is the case with those commonly called possessed, whom we see to be deprived of reason, and insane (such as those were who are related in the Gospel to have been cured by the Saviour); or when by their wicked suggestions they deprave a sentient and intelligent soul with thoughts of various kinds, persuading it to evil, of which Judas is an illustration, who was induced at the suggestion of the devil to commit the crime of treason, according to the declaration of Scripture, that “the devil had already put it into the heart of Judas Iscariot to betray him.”