Acts is a book filled with stories about the Holy Spirit - there are 57 references to the Spirit across 28 chapters, making up over a quarter of the references within the New Testament. In chapter 1, Jesus insists that the apostles must do nothing without the Holy Spirit: '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.'

Not only must we wait on the Spirit, we must go on being filled by the Spirit. Only two chapters after the iconic filling of the Holy Spirit at Pentecost the apostles are filled once again in Acts 4:31 'After they prayed, the place where they were meeting was shaken. And they were all filled with the Holy Spirit and spoke the word of God boldly.'