Acts 8:5-8

Philip [the evangelist] went down to the city of Samaria and began proclaiming Christ (the Messiah, the Anointed) to them. [Acts 6:5] The crowds gathered and were paying close attention to everything Philip said, as they heard [the message] and saw the [miraculous] signs which he was doing [validating his message]. For unclean spirits (demons), shouting loudly, were coming out of many who were possessed; and many who had been paralyzed and lame were healed. So there was great rejoicing in that city.