To Theophilus. The first book I wrote was about everything Jesus began to do and teach
until the day he was taken up into heaven. Before this, with the help of the Holy Spirit, Jesus told the apostles he had chosen what they should do.
After his death, he showed himself to them and proved in many ways that he was alive. The apostles saw Jesus during the forty days after he was raised from the dead, and he spoke to them about the kingdom of God.
Once when he was eating with them, he told them not to leave Jerusalem. He said, "Wait here to receive the promise from the Father which I told you about.
John baptized people with water, but in a few days you will be baptized with the Holy Spirit."
When the apostles were all together, they asked Jesus, "Lord, are you now going to give the kingdom back to Israel?"