In this sermon, we explore the power of the Holy Spirit through the lens of Acts 2, addressing skepticism about spiritual gifts. Using the Pentecost event, where fire fell and people spoke in new languages, we see varied reactions—amazement, confusion, doubt, and even mockery—showing that God’s work doesn’t require universal understanding to be real. Drawing from Isaiah 56, John 12, and 1 Corinthians 2, we learn that even devout people may not grasp God’s power at first, yet the Spirit still transforms lives and advances the gospel. We’re challenged to stay open to the Spirit’s work, praying for God to use us in these last days, uniting believers while distinguishing them from the world.