Reclaiming Revival: Something We Should Expect!
Acts 1:1-5, 2:1-4 ESV
 In the first book, O Theophilus, I have dealt with all that Jesus began to do and teach,  until the day when he was taken up, after he had given commands through the Holy Spirit to the apostles whom he had chosen.  He presented himself alive to them after his suffering by many proofs, appearing to them during forty days and speaking about the kingdom of God.
 And while staying with them he ordered them not to depart from Jerusalem, but to wait for the promise of the Father, which, he said, “you heard from me;  for John baptized with water, but you will be baptized with the Holy Spirit not many days from now.”
Acts 2:1-4 ESV
 When the day of Pentecost arrived, they were all together in one place.  And suddenly there came from heaven a sound like a mighty rushing wind, and it filled the entire house where they were sitting.  And divided tongues as of fire appeared to them and rested on each one of them.  And they were all filled with the Holy Spirit and began to speak in other tongues as the Spirit gave them utterance.