Acts 1:1-5 - The Preface
1 The former treatise I made, O Theophilus, concerning all that Jesus began both to do and to teach, 2 until the day in which he was received up, after that he had given commandment through the Holy Spirit unto the apostles whom he had chosen: 3 To whom he also showed himself alive after his passion by many proofs, appearing unto them by the space of forty days, and speaking the things concerning the kingdom of God:
4 and, being assembled together with them, he charged them not to depart from Jerusalem, but to wait for the promise of the Father, which,'said he , ye heard from me: 5 For John indeed baptized with water; but ye shall be baptized in the Holy Spirit not many days hence.