Thematic Bible: When you will receive power

Now when they met, they asked him, "Lord, is this the time you are going to restore the Realm to Israel?" But he told them, "It is not for you to know the course and periods of time that the Father has fixed by his own authority. You will receive power when the holy Spirit comes upon you, and you will be my witnesses at Jerusalem, throughout all Judaea and Samaria, and to the end of the earth."