Acts 1:1-3

1In my former book, Theophilus, I wrote about all that Jesus began to do and to teach

2until the day he was taken up to heaven, after giving instructions through the Holy Spirit to the apostles he had chosen.

3After his suffering, he presented himself to them and gave many convincing proofs that he was alive. He appeared to them over a period of forty days and spoke about the kingdom of God.