Exorcism in Christianity
Exorcism in Christianity is the practice of casting out demons from a person they are believed to have possessed. 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. A survey of Christian exorcists found that most exorcists believe that any mature Christian can perform an exorcism, not just members of clergy. 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.
Lewis Ashmore
Ashmore was a noted exorcist having performed hundreds of exorcisms since the 1950s. "For decades Rev. Lewis Ashmore cast out devils during tent revivals in the Central Valley. People foamed at the mouth, talked back to him in a strange voice and writhed uncontrollably on the ground." Aged 75, two years before he died, Ashmore concluded that demonic possession could be explained in the 21st century by modern medicine. "Back in Christ’s day, these mental conditions weren’t yet diagnosed,” he said. “All exorcisms can be explained by psychology and science."