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.
Ethiopian Orthodox Tewahedo Church
Priests intervene and perform exorcisms on behalf of those believed to be afflicted by demons or "buda". According to a 2010 Pew Research Center study, 74% of Christians in Ethiopia claim to have experienced or witnessed an exorcism. Demon-possessed persons are brought to a church or prayer meeting. Often, when an ill person has not responded to modern medical treatment, the affliction is attributed to demons. Unusual or especially perverse deeds, particularly when performed in public, are symptomatic of a demoniac. Superhuman strength–such as breaking one's bindings, as described in the New Testament accounts–along with glossolalia are observed in the afflicted. Amsalu Geleta, in a modern case study, relates elements that are common to Ethiopian Christian exorcisms: