"Then some of the itinerant Jewish exorcists took it upon themselves to call the name of the Lord Jesus over those who had evil spirits, saying, “We exorcise you by the Jesus whom Paul preaches.” Also there were seven sons of Sceva, a Jewish chief priest, who did so.
And the evil spirit answered and said, “Jesus I know, and Paul I know; but who are you?”
Then the man in whom the evil spirit was leaped on them, overpowered them, and prevailed against them, so that they fled out of that house naked and wounded."
Acts 19:13-16

@Live Mike @JMLFiat "Jesus answered him, I have spoken openly to the world; I ever taught in synagogues, and in the temple, where all the Jews come together; and in secret spake I nothing. Why askest thou me? ask them that have heard me, what I spake unto them: behold, these know the things which I said. And when he had said this, one of the officers standing by struck Jesus with his hand, saying, Answerest thou the high priest so? Jesus answered him, If I have spoken evil, bear witness of the evil: but if well, why smitest thou me? Annas therefore sent him bound unto Caiaphas the high priest." John 18:20-24