The manner of prophecy was various, but that employed by oracles enjoyed the greatest repute; because they were believed to proceed, in a most especial manner, from the gods themselves. Every thing of essential consequence being, therefore, referred to them by the heads of states, oracles obtained a powerful influence over the minds of the people; and this popular credulity offered tempting opportunities to the priests for carrying on very lucrative impostures, nor did they disdain or neglect to take advantage of those opportunities. Added to this, the different functions of the gods, and the different and often opposite parts which they were made to take in human affairs by the priests and poets, were plentiful sources of superstitious rites, and therefore of emolument to those who, in consequence either of office or pretension, were supposed to have immediate communications with the deity in whose temples they presided.
Much has been written on this subject; and some have even gone so far as to suppose that Divine permission was granted to certain demons, or evil spirits, to inhabit pagan shrines, and thence, by ambiguous answers, to deceive, and often to punish, those who sought by their influence to read the forbidden volume of futurity.
This doctrine was strenuously opposed by Van Dale; and Mœbius (of Leipsic), although opposed to Van Dale’s opinion, allows that oracles did not cease to grant responses _immediately_ at the coming of Christ; and this has been considered a sufficient proof as well as argument, that demons did not deliver oracular responses; but that those responses were impostures and contrivances of the priests themselves.
The true cause of the cessation of oracular prophecy, however, appears to be, that the minds of men became enlightened by the wide-spreading of the Christian faith; and by the circumstance, that their superstition was compromised by the metamorphoses of their favourite heroes and deities into saints and martyrs. As an instance of which, it will hereafter be shown, that the statues of the ancient gods, even to this day, are allowed to stand and hold places in the churches and cathedrals of many Catholic countries.
Those who argue that oracles _ceased_ immediately at the coming of Christ, relate, in confirmation of their opinion, that Augustus having grown old, became desirous of choosing a successor, and went, in consequence, to consult the oracle at Delphos. No answer was given, at first, to his inquiry, though he had spared no expense to conciliate the oracle. At last, however, the priestess is reported to have said, “the Hebrew Infant, to whom all gods render obedience, chases me hence; He sends me to the lower regions; therefore depart this temple, without speaking more.”