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."
9After he said this, he was taken up before their very eyes, and a cloud hid him from their sight.
10They were looking intently up into the sky as he was going, when suddenly two men dressed in white stood beside them. 11"Men of Galilee," they said, "why do you stand here looking into the sky? This same Jesus, who has been taken from you into heaven, will come back in the same way you have seen him go into heaven."
It's not for us to know God's plan but to be followers of His will. If we declare allegiance to God and decide to lose ourselves and follow Him, He will move us in the right direction for our lives to further His kingdom. Our power comes ONLY from God.