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.
Deliverance ministry
Though many people confuse deliverance with exorcism, they are not the same. Exorcisms are carried out through the use of various rituals of exorcism, such as the Roman Ritual, and often utilize attendant sacramentals such as holy water, while deliverance involves the ongoing counseling of the individual through various programs.