The Promise of the Holy Spirit

1 In the first book, Theophilus, I wrote about all that Jesus began to do and teach^{(A) 2} until the day when he was taken up to heaven, after giving instructions through the Holy Spirit to the apostles whom he had chosen.^{(B) 3} After his suffering^[a] he presented himself alive to them by many convincing proofs, appearing to them during forty days and speaking about the kingdom of God.^(C)