Exorcism
In Christianity, exorcism is the practice of casting out demons. In Christian practice the person performing the exorcism, known as an exorcist, is often a member of the Christian Church, or an individual thought to be graced with special powers or skills. The exorcist may use prayers and religious material, such as set formulas, gestures, symbols, icons, amulets, etc. The exorcist often invokes God, Jesus and/or several different angels and archangels to intervene with the exorcism. Protestant Christian exorcists most commonly believe the authority given to them by the Father, Son, and Holy Spirit (the Trinity) is the source of their ability to cast out demons.
Exorcism in Christianity
For example, in one particular situation, a Roman Catholic woman believed that her house was haunted, and therefore consulted her priest for assistance. Since he was not available to drive the demons from the woman's home, she contacted a Methodist pastor, who exorcised the evil spirits from a room, which was believed to be the source of distress in the house, and celebrated Holy Communion in the same place; following these actions, there was no longer any problem in the house. In another situation, The Reverend Jay Bartlett writes that a young lady who was involved with "drug abuse, self mutilation, severe abuse, mental torment, Satanism, occult activity, communion with demons, and other evils" was exorcised at Mt. Olive Free Methodist Church in Dallas over a period of seven nights, with "anointing oil, the Word of God (the sword of the Spirit), holy water, the sacred symbols of the cross, the blood of Christ, and consecrated materials [being] utilized to drive out the demons."