Knowledge or Spirit?

After his death, he presented himself alive to them in many different settings over a period of forty days. In face-to-face meetings, he talked to them about things concerning the kingdom of God. As they met and ate meals together, he told them that they were on no account to leave Jerusalem but "must wait for what the Father promised: the promise you heard from me. John baptized in water; you will be baptized in the Holy Spirit. And soon." When they were together for the last time they asked, "Master, are you going to restore the kingdom to Israel now? Is this the time?" He told them, "You don't get to know the time. Timing is the Father's business. What you'll get is the Holy Spirit. And when the Holy Spirit comes on you, you will be able to be my witnesses in Jerusalem, all over Judea and Samaria, even to the ends of the world." Acts 1:3-8

The story of Acts is the story of the early church, how it came to be, and how the Spirit of God empowered the church to be witnesses to what Christ had done. In the beginning of Acts, Jesus is coming to the disciples one last time, offering instruction and guidance in order to carry on his ministry and participate in the unfolding Kingdom of God.
The disciples are confused, bewildered, and underprepared. Their first question to Jesus is: is now the time you will bring all of this to an end? Jesus gives the disciples an unsatisfying answer: it is not for you to know. Has God ever answered a prayer that way for you? Have your urgent concerns for knowledge and certainty been met with silence?
The disciples were fixated on KNOWING what God was up to. They wanted access to God's plan, they wanted to know how the story ended. Jesus tells the disciples, and us, that you do not get to know God's plan, you do not get to know God's timing. Instead Jesus promises the Holy Spirit which will empower them to be witnesses for God. The Spirit will give them, and us, what they need to share the story of Jesus with the world.
These humble and undereducated Galileans will share the story of Jesus' life, death, and resurrection and through the power of the Spirit the world will be transformed. The story of Acts is not the story of the end of Jesus, it is the story of the beginning of the church. It is the beginning of God's people relying on the Spirit to change the world. We, like the disciples, are called to share the story of what Jesus has done for us. We are called to share this story, not because we have all the answers and all the knowledge, but because we trust that when we speak the Spirit will give us what we need.
Do you trust the Spirit? Are you able to be a witness to what God has done in your life?
Are you more inclined to rely upon your head or your heart when it comes to sharing about God? Why?