Acts 1:3-8

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. 4On one occasion, while he was eating with them, he gave them this command: “Do not leave Jerusalem, but wait for the gift my Father promised, which you have heard me speak about.

5For John baptized with Or in water, but in a few days you will be baptized with Or in the Holy Spirit.”

6Then they gathered around him and asked him, “Lord, are you at this time going to restore the kingdom to Israel?” 7He said to them: “It is not for you to know the times or dates the Father has set by his own authority.

8But you will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”