When Peter describes the events of Acts chapter 2, he evokes the memory in the mind of any Jewish believer the words of the prophet Joel; Who's name means ("Jehovah is God", or "to whom Jehovah is God")
There are recurring themes in the book titled after the writer Joel:
- the Day of the Lord
- Repentance
- The Promise of God dwelling with His people
- The future outpouring of the Holy Spirit