Acts 1:6-8

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.”