Religious & Catholic Necklace Jewelry, Men or Womens St. Benedict Exorcism Necklace with Pendant, Material: Zinc Alloy Enamel Size: 11?4" Dia, 20" L Pop Bead Chain. Lay Catholics Are Not Permitted to Perform Exorcisms but They Can Use the Saint Benedict Medal, Holy Water, the Crucifix, and Other Sacramentals to Ward Off Evil. Catholic Saint Benedict Patron Saint of Kidney Disease, Poison Sufferers, Students, Poisoning, School Children, Homeless, Monks.