HKB
"Move not, O sun, toward Gabaon," it is said afterwards (Josh. 10:14): "There was not before or after so long a day, the Lord obeying the voice of a man."
Reply Obj. 2: Our Lord is speaking there of the miracles to be wrought at the time of Antichrist, of which the Apostle says (2 Thess. 2:9) that the coming of Antichrist will be "according to the working of Satan, in all power, and signs, and lying wonders." To quote the words of Augustine (De Civ. Dei xx, 19), "it is a matter of debate whether they are called signs and lying wonders, because he will deceive the senses of mortals by imaginary visions, in that he will seem to do what he does not, or because, though they be real wonders, they will seduce into falsehood them that believe." They are said to be real, because the things themselves will be real, just as Pharaoh's magicians made real frogs and real serpents; but they will not be real miracles, because they will be done by the power of natural causes, as stated in the First Part (Q. 114, A. 4); whereas the working of miracles which is ascribed to a gratuitous grace, is done by God's power for man's profit.
Reply Obj. 3: Two things may be considered in miracles. One is that which is done: this is something surpassing the faculty of nature, and in this respect miracles are called "virtues." The other thing is the purpose for which miracles are wrought, namely the manifestation of something supernatural, and in this respect they are commonly called "signs": but on account of some excellence they receive the name of "wonder" or "prodigy," as showing something from afar (procul).
Reply Obj. 4: The "grace of healing" is mentioned separately, because by its means a benefit, namely bodily health, is conferred on man in addition to the common benefit bestowed in all miracles, namely the bringing of men to the knowledge of God.
Reply Obj. 5: The working of miracles is ascribed to faith for two reasons. First, because it is directed to the confirmation of faith, secondly, because it proceeds from God's omnipotence on which faith relies. Nevertheless, just as besides the grace of faith, the grace of the word is necessary that people may be instructed in the faith, so too is the grace of miracles necessary that people may be confirmed in their faith.
SECOND ARTICLE [II-II, Q. 178, Art. 2]
Whether the Wicked Can Work Miracles?
Objection 1: It would seem that the wicked cannot work miracles. For miracles are wrought through prayer, as stated above (A. 1, ad 1). Now the prayer of a sinner is not granted, according to John 9:31, "We know that God doth not hear sinners," and Prov. 28:9, "He that turneth away his ear from hearing the law, his prayer shall be an abomination." Therefore it would seem that the wicked cannot work miracles.
Obj. 2: Further, miracles are ascribed to faith, according to Matt. 17:19, "If you have faith as a grain of mustard seed you shall say to this mountain: Remove from hence hither, and it shall remove." Now "faith without works is dead," according to James 2:20, so that, seemingly, it is devoid of its proper operation. Therefore it would seem that the wicked, since they do not good works, cannot work miracles.
Obj. 3: Further, miracles are divine attestations, according to Heb. 2:4, "God also bearing them witness by signs and wonders and divers miracles": wherefore in the Church the canonization of certain persons is based on the attestation of miracles. Now God cannot bear witness to a falsehood. Therefore it would seem that wicked men cannot work miracles.
Obj. 4: Further, the good are more closely united to God than the wicked. But the good do not all work miracles. Much less therefore do the wicked.