Acts 16:16-18

It happened that as we were on our way to the place of prayer, we were met by a slave-girl who had a spirit of divination [that is, a demonic spirit claiming to foretell the future and discover hidden knowledge], and she brought her owners a good profit by fortune-telling. She followed after Paul and us and kept screaming and shouting, “These men are servants of the Most High God! They are proclaiming to you the way of salvation!” She continued doing this for several days. Then Paul, being greatly annoyed and worn out, turned and said to the spirit [inside her], “I command you in the name of Jesus Christ [as His representative] to come out of her!” And it came out at that very moment.