Acts 1:6-8

6So when they had gathered together, they began to ask him, “Lord, is this the time when you are restoring the kingdom to Israel?”

7He told them, “You are not permitted to know the times or periods that the Father has set by his own authority.

8But you will receive power when the Holy Spirit has come upon you, and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the farthest parts of the earth.”