Schaff's Bible Dictionary
EXOR'CISTS, those who, by the use of the name of God, attempted to expel evil spirits from places or persons of whom they had possession. It was not an uncommon profession among the Jews, as we may infer from Matt 12:27; Mark 9:38; Acts 19:13. They were popularly believed to have gotten their power by their study of magic formulas written out by Solomon, of drugs and charms, by the use of spells and incantations; but they were impostors.
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