Demon
The contemporary Roman Catholic Church unequivocally teaches that angels and demons are real beings rather than just symbolic devices. The Catholic Church has a cadre of officially sanctioned exorcists which perform many exorcisms each year. The exorcists of the Catholic Church teach that demons attack humans continually but that afflicted persons can be effectively healed and protected either by the formal rite of exorcism, authorized to be performed only by bishops and those they designate, or by prayers of deliverance, which any Christian can offer for themselves or others.
Exorcism
The Jewish exorcism ritual is performed by a rabbi who has mastered practical Kabbalah. Also present is a minyan (a group of ten adult males), who gather in a circle around the possessed person. The group recites Psalm 91 three times, and then the rabbi blows a shofar (a ram's horn).