Acts 2:16 tells you that what the crowd was watching on the day of Pentecost was not a random event, but the fulfillment of something God had already promised through the Hebrew prophet Joel. Peter is the one speaking, and he is speaking to a crowd in Jerusalem that had just heard believers praising God in many languages and had written it off as drunkenness.
But this is what has been spoken through the prophet Joel…
Acts 2:16 (WEB)
What Acts 2:16 Means
The verse opens with “But,” which signals a contrast. Peter has just said the people are not drunk, since it is only nine in the morning. Now he turns to the real explanation. The phrase “this is what has been spoken” tells you that the events are the fulfillment of a prior word, not something invented on the spot. Peter is saying that the experience they are witnessing has a source and a purpose that were announced long before.
The phrase “through the prophet Joel” names the messenger. Joel was an Old Testament prophet, and Peter’s audience, being Jewish, would have known his book well. By pointing to Joel, Peter grounds the new movement of the Spirit in the Scriptures Israel already trusted. The verse does not promise that every strange experience is from God, nor does it give a formula for judging spiritual phenomena. What it does is show that the coming of the Spirit fits within the story God had been telling all along.
The Context of Acts 2:16
Acts was written by Luke, the same author who wrote the Gospel bearing his name, and he addressed it to a person named Theophilus. Luke was a companion of Paul and writes as a careful historian of the early church’s first generation. The book follows the spread of the good news from Jerusalem outward, and chapter 2 marks the moment the church is born through the coming of the Holy Spirit on the disciples gathered in the city.
Just before the verse, the crowd mocks the believers, and in the verses after it, Peter quotes Joel at length, describing the Spirit poured out on sons and daughters, young and old, male and female servants. Read in that setting, Acts 2:16 is the hinge of the sermon. The mockery is answered, and the quotation that follows opens up a vision of God’s Spirit reaching far beyond a small group of insiders.
Key Phrases in Acts 2:16
Joel 2:28
“It will happen afterward, that I will pour out my Spirit on all flesh; and your sons and your daughters will prophesy. Your old men will dream dreams. Your young men will see visions.
(WEB)
This is the prophecy Peter is quoting. Reading the original promise in Joel gives you the full picture of what Peter was announcing and why his listeners could see it as the fulfillment of God’s word.
Acts 1:8
But you will receive power when the Holy Spirit has come upon you. You will be witnesses to me in Jerusalem, in all Judea and Samaria, and to the uttermost parts of the earth.”
(WEB)
Just before Pentecost, Jesus promised that the disciples would receive power from the Holy Spirit and become witnesses to him. This verse frames the coming of the Spirit as the empowerment for the mission that Acts goes on to describe.
A Short Prayer From Acts 2:16
Lord, you spoke through Joel long before the day of Pentecost, and you kept that word faithful when the Spirit came upon your people in Jerusalem. Help me to trust that what you have promised in Scripture is still true today. When I am tempted to explain away your work in my life, remind me that you have been telling your story for a very long time. Open my ears to hear what you have already said, and give me the courage to speak of it plainly. Amen.