Acts 2:17 says, “‘And in the last days it shall be, God declares, that I will pour out my Spirit on all flesh, and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams’” (ESV). These words are part of Peter’s message on the Day of Pentecost, where he explains that the extraordinary events taking place—the outpouring of the Holy Spirit—are the fulfillment of the prophecy found in Joel 2:28–32. According to Peter, the arrival of the Holy Spirit marked the beginning of a new chapter in God’s redemptive plan, ushering in what Scripture refers to as “the last days.”