Acts 16: Words but not the Spirit

The same followed Paul and us, and cried, saying, These men are the servants of the most high God, which shew unto us the way of salvation. And this did she many days. But Paul, being grieved, turned and said to the spirit, I command thee in the name of Jesus Christ to come out of her. And he came out the same hour. (verse 17-18)

There are those who speak the right spiritual words but they posses a different spirit.