But the evil spirit replied to them, “I know about Jesus and I am acquainted with Paul, but who are you?”
“Leave us alone, Jesus the Nazarene! Have you come to destroy us? I know who you are – the Holy One of God!”
So he healed many who were sick with various diseases and drove out many demons. But he would not permit the demons to speak, because they knew him.
(Now seven sons of a man named Sceva, a Jewish high priest, were doing this.)
Then the man who was possessed by the evil spirit jumped on them and beat them all into submission. He prevailed against them so that they fled from that house naked and wounded.
You believe that God is one; well and good. Even the demons believe that – and tremble with fear.