25 In this power of the Holy Ghost, Philip also in the Name of Christ at one time in the city of Samaria drove away the unclean spirits, crying out with a loud voice; and healed the palsied and the lame, and brought to Christ great multitudes of them that believe. To whom Peter and John came down, and with prayer, and the laying on of hands, imparted the fellowship of the Holy Ghost, from which Simon Magus alone was declared an alien, and that justly. And at another time Philip was called by the Angel of the Lord in the way, for the sake of that most godly Ethiopian, the Eunuch, and heard distinctly the Spirit Himself saying, Go near, and join yourself to this chariot. He instructed the Eunuch, and baptized him, and so having sent into Ethiopia a herald of Christ, according as it is written, Ethiopia shall soon stretch out her hand unto God, he was caught away by the Angel, and preached the Gospel in the cities in succession.
Source: Catechetical Lectures (New Advent)