Acts 1:1-5 - The Preface
1 The former treatise have I made, O Theophilus, of all that Jesus began both to do and teach, 2 Until the day in which he was taken up, after he through the Holy Spirit had given commandments unto the apostles whom he had chosen: 3 To whom also he showed himself alive after his passion by many infallible proofs, being seen of them forty days, and speaking of the things pertaining to the kingdom of God:
4 And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, said he, you have heard of me. 5 For John truly baptized with water; but you shall be baptized with the Holy Spirit not many days from now.