Casting out devils is mere juggling; they never cast out any but what they first cast in.
History would have told them [the people] how half-literate priests taught the working people patience and submission to the "authorities appointed by God"; how peasants were made monks by force and monasteries built with their man-power; how the number of "lay parasites" was swollen and brought into being, in which the peasant worked with a plough and his parasite with a spoon. To increase its power and influence over the ignorant people, the church staged flimsy tricks which it called "miracles," from the boyars it created "saints," men of God--all for the benefit of the authorities. The main task of all churches was one and the same: to impress upon the poor serfs that there was no happiness for them on earth; happiness was prepared for them in heaven, and meanwhile back-breaking toil for some other fellow was pleasing in the sight of God.
Aleksei Maximovitch Peshkov
Many have made a trade of delusions and false miracles, deceiving the stupid multitudes.
We must remember that Satan has his miracles, too.
The pre-history of our species is hag-ridden with episodes of nightmarish ignorance and calamity, for which religion used to identify, not just the wrong explanation, but the wrong culprit. Human sacrifices were made preeminently in times of epidemics, useless prayers were uttered, bogus miracles attested to, and scapegoats - such as Jews or heretics or witches - hunted down and burned.
Anything God does, the enemy tries to counterfeit. We have to be on guard against the enemy!
It is not possible for a single person to be working outstanding miracles, signs and wonders which millions of other Nigerians cannot do and for such a person to be an agent of Satan. They - the God's generals - should combine forces and deliver such a satanic person or get rid of him.
The devil can counterfeit all the saving operations and graces of the Spirit of God.
If the works of Jesus were so much more wonderful than man could perform as to deserve to be called miracles, was it not nonsense to caution his disciples so strongly against being deluded by the works of others?
We must remember that if all the manifestly good men were on one side and all the manifestly bad men on the other, there would be no danger of anyone, least of all the elect, being deceived by lying wonders. It is the good men, good once, we must hope good still, who are to do the work of Anti-Christ and so sadly to crucify the Lord afresh.... Bear in mind this feature of the last days, that this deceitfulness arises from good men being on the wrong side.