Why is the Holy Spirit important in the sermon at Pentecost?

The significance of the Holy Spirit in Peter's sermon cannot be overstated. The arrival of the Holy Spirit fulfills the promise of God to empower His witnesses and to enable them to proclaim the gospel effectively, as evidenced by the crowd hearing the message in their own languages. Furthermore, the Holy Spirit is pivotal in convicting the hearts of the listeners, prompting them to ask what they should do in response to the message. This divine work of the Spirit is essential for true conversion and the formation of the church.