Peter finished his sermon and the crowd was cut to the heart. "What do we do?" they asked. And Peter had a clear answer: repent, be baptized, receive the Holy Spirit. In today's episode, we look at what happened when the gospel landed on a crowd that was actually listening -- three thousand people baptized in a single afternoon. Peter preached one sermon. One. And by sundown, the church had multiplied twenty-five times over. God does the heavy lifting. Ordinary people just have to show up and say yes.