4 On 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[a] water, but in a few days you will be baptized with the Holy Spirit."

6 So when they met together, they asked him, "Lord, are you at this time going to restore the kingdom to Israel?"

7 He 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."

God really spoke to me through this passage this morning in my devotional time.
Imagine being the disciples. You have spent 3 years following Jesus, you have seen Him be laughed at, suffer and then die.
Finally...you now see He is alive, victorious! All He said would happen...has.
And therefore you legitimately ask, now Jesus? now? Will you restore things now?
But the answer is...no. Not right now, it is not for you to know that. For now, you will receive the Holy Spirit, be empowered...and you need to spread the gospel, the good news.

Its like Jesus is saying, your time of comfort, restoration, everything being right...is not yet! For now, even though you have been through three years of this, your time has not yet come. Why? Because there were so many that needed to hear about Jesus. So many that Jesus wanted to bring into His family.
Their comfort was not important, what was important was the Kingdom!
Challenging.