Acts 19:13-15

19:13 But some itinerant Jewish exorcists tried to invoke the name of the Lord Jesus over those who were possessed by evil spirits, saying, “I sternly warn you by Jesus whom Paul preaches.” 19:14 (Now seven sons of a man named Sceva, a Jewish high priest, were doing this.) 19:15 But the evil spirit replied to them, “I know about Jesus and I am acquainted with Paul, but who are you?”