Exorcism
In Catholic practice the person performing the exorcism, known as an exorcist, is an ordained priest. The exorcist recites prayers according to the rubrics of the rite, and may make use of religious materials such as icons and sacramentals. The exorcist invokes God—specifically the Name of Jesus—as well as members of the Church Triumphant and the Archangel Michael to intervene with the exorcism. According to Catholic understanding, several weekly exorcisms over many years are sometimes required to expel a deeply entrenched demon.
Brian Connor
In 1985 the ministry of exorcism was first introduced to him when he encountered a woman who was a third generation satanist. From then on he ministered to people with spiritual oppression. He said of exorcisms that, "when one experiences it face-to-face -- when one sees evil, smells it, feels it, has things thrown in his face, encounters evil prowling around like a lion -- then you know there's a spiritual warfare going on all around us."