Look what happened next:
When the people heard this, they were cut to the heart and said to Peter and the other apostles, “Brothers, what shall we do?” (2:37) Where are the scoffers now?
Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit. The promise is for you and your children and for all who are far off—for all whom the Lord our God will call.”
With many other words he warned them; and he pleaded with them, “Save yourselves from this corrupt generation.” Those who accepted his message were baptized, and about three thousand were added to their number that day. (2:38-41) Here’s a question to ponder:
When did Peter become such a Bible scholar that he could cite and interpret Scripture so insightfully that people would see truths they had never before seen? Peter was a fisherman, not a theologian; he was a working man, not a Rabbi! where did this come from?
Another question might be, what had Peter really done?
The answer is simplicity itself: Not much. On that amazing day, the only thing Peter had done was show up, and get out of the Spirit’s way; the Spirit did the rest, and about 3,000 people were saved from destruction. I’ll end with one final point to think about: The same Holy Spirit that was in Peter is in all of us; brothers and sisters, what shall we do?