Christianity
The gospels record three sorts of miracles performed by Jesus: exorcisms, cures, and natural wonders. In the Gospel of John, the miracles are referred to as "signs" and the emphasis is on God demonstrating his underlying normal activity in remarkable ways. In the New Testament, the greatest miracle is the resurrection of Jesus, the event central to Christian faith.
Jesus explains in the New Testament that miracles are performed by faith in God. "If you have faith as small as a mustard seed, you can say to this mountain, 'move from here to there' and it will move." (Gospel of Matthew 17:20). After Jesus returned to heaven, the Book of Acts records the disciples of Jesus praying to God to grant that miracles be done in his name for the purpose of convincing onlookers that he is alive. (Acts 4:29–31).
Other passages mention false prophets who will be able to perform miracles to deceive "if possible, even the elect of Christ" (Matthew 24:24). 2 Thessalonians 2:9 says, "And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of His mouth, and shall destroy with the brightness of His coming: Even him, whose coming is after the working of Satan with all power and signs and lying wonders, and with all deceivableness of unrighteousness in them that perish; because they received not the love of the Truth, that they might be saved." Revelation 13:13,14 says, "And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men, and deceiveth them that dwell on the earth by the means of those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live." Revelation 16:14 says, "For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty." Revelation 19:20 says, "And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the mark of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone." These passages indicate that signs, wonders, and miracles are not necessarily committed by God. These miracles not committed by God are labeled as false(pseudo) miracles though which could mean that they are deceptive in nature and are not the same as the true miracles committed by God.
In early Christianity, miracles were the most often attested motivations for conversions of pagans; pagan Romans took the existence of miracles for granted; Christian texts reporting them offered miracles as divine proof of the Christian God's unique claim to authority: "of all worships, the Christian best and most particularly advertised its miracles by driving out of spirits and laying on of hands". The Gospel of John is structured around miraculous "signs": The success of the Apostles, according to the church historian Eusebius of Caesarea, lay in their miracles: "though laymen in their language", he asserted, "they drew courage from divine, miraculous powers". The conversion of Constantine by a miraculous sign in heaven is a prominent fourth-century example.
Since the Age of Enlightenment, miracles have often needed to be rationalized: C.S. Lewis, Norman Geisler, William Lane Craig, and other 20th-century Christians have argued that miracles are reasonable and plausible. For example, Lewis said that a miracle is something that comes totally out of the blue. If for thousands of years a woman can become pregnant only by sexual intercourse with a man, then if she were to become pregnant without a man, it would be a miracle. Others argue that Jesus's healing miracles dealt with conversion and somatization disorders, could manifest as blindness, paralysis etc. In a Mediterranean context, healing was also defined as restoring a person's social standing. Some diseases, like leprosy, caused immense social stigma.
There have been numerous claims of miracles by people of most Christian denominations, including but not limited to faith healings and exorcisms. Miracle reports are especially prevalent in Roman Catholicism and Pentecostal or Charismatic churches.
The Catholic Church believes miracles are works of God, either directly, or through the prayers and intercessions of a specific saint or saints. There is usually a specific purpose connected to a miracle, e.g. the conversion of a person or persons to the Catholic faith or the construction of a church desired by God. The church says that it tries to be very cautious to approve the validity of putative miracles. The Catholic Church also says that it maintains particularly stringent requirements in validating the miracle's authenticity. The process is overseen by the Congregation for the Causes of Saints.
The Catholic Church has listed several events as miracles, some of them occurring in modern times. Before a person can be accepted as a saint, they must be posthumously confirmed to have performed two miracles. In the procedure of beatification of Pope John Paul II, who died in 2005, the Vatican announced on 14 January 2011 that Pope Benedict XVI had declared that the recovery of Marie Simon-Pierre from Parkinson's disease was a miracle.
Among the more notable miracles approved by the church are several Eucharistic miracles wherein the sacramental species of bread and wine attain the accidents of human flesh and blood. Prominent examples are the Miracle of Lanciano and of Santarém.
According to 17th century documents, a young Spanish man's leg was miraculously restored to him in 1640 after having been amputated two and a half years earlier.
Another miracle approved by the church is the Miracle of the Sun, which is said to have occurred near Fátima, Portugal on October 13, 1917. According to witnesses, between 70,000 and 100,000 people, who were gathered at a cove near Fátima, witnessed the sunlight dim and change colors, and the Sun spin, dance about in the sky, and appear to plummet towards Earth, radiating great heat in the process. After the ten-minute event, the ground and the people's clothing, which had been drenched by a previous rainstorm, were both dry.
Velankanni (Mary) can be traced to the mid-16th century and is attributed to three miracles: the apparition of Mary and the Christ Child to a slumbering shepherd boy, the curing of a lame buttermilk vendor, and the rescue of Portuguese sailors from a violent sea storm.
In addition to these, the Catholic Church attributes miraculous causes to many otherwise inexplicable phenomena on a case-by-case basis. Only after all other possible explanations have been asserted to be inadequate will the church assume divine intervention and declare the miracle worthy of veneration by their followers. The church does not, however, enjoin belief in any extra-Scriptural miracle as an article of faith or as necessary for salvation.
Thomas Aquinas, a prominent Doctor of the Church, divided miracles into three types in his Summa contra Gentiles:Things that are at times divinely accomplished, apart from the generally established order in things, are customarily called miracles; for we admire with some astonishment a certain event when we observe the effect but do not know its cause. And since one and the same cause is at times known to some people and unknown to others, the result is that of several who see an effect at the same time, some are moved to admiring astonishment, while others are not. For instance, the astronomer is not astonished when he sees an eclipse of the sun, for he knows its cause, but the person who is ignorant of this science must be amazed, for he ignores the cause. And so, a certain event is wondrous to one person, but not so to another. So, a thing that has a completely hidden cause is wondrous in an unqualified way, and this the name, miracle, suggests; namely, what is of itself filled with admirable wonder, not simply in relation to one person or another. Now, absolutely speaking, the cause hidden from every man is God. In fact, we proved above that no man in the present state of life can grasp His essence intellectually. Therefore, those things must properly be called miraculous which are done by divine power apart from the order generally followed in things.
Now, there are various degrees and orders of these miracles. Indeed, the highest rank among miracles is held by those events in which something is done by God which nature never could do. For example, that two bodies should be coincident; that the sun reverse its course, or stand still; that the sea open up and offer a way through which people may pass. And even among these an order may be observed. For the greater the things that God does are, and the more they are removed from the capacity of nature, the greater the miracle is. Thus, it is more miraculous for the sun to reverse its course than for the sea to be divided.
Then, the second degree among miracles is held by those events in which God does something which nature can do, but not in this order. It is a work of nature for an animal to live, to see, and to walk; but for it to live after death, to see after becoming blind, to walk after paralysis of the limbs, this nature cannot do—but God at times does such works miraculously. Even among this degree of miracles a gradation is evident, according as what is done is more removed from the capacity of nature.
Now, the third degree of miracles occurs when God does what is usually done by the working of nature, but without the operation of the principles of nature. For example, a person may be cured by divine power from a fever which could be cured naturally, and it may rain independently of the working of the principles of nature.
For a majority of Evangelical Christians, biblicism ensures that the miracles described in the Bible are still relevant and may be present in the life of the believer. Healings, academic or professional successes, the birth of a child after several attempts, the end of an addiction, etc., would be tangible examples of God's intervention with the faith and prayer, by the Holy Spirit. In the 1980s, the neo-charismatic movement re-emphasized miracles and faith healing. In certain churches, a special place is thus reserved for faith healings with laying on of hands during worship services or for campaigns evangelization. Faith healing or divine healing is considered to be an inheritance of Jesus acquired by his death and resurrection.