After the arrival of the Holy Spirit, Peter starts to explain what Jesus has done to the people gathered to see the Holy Spirit. Peter is excited to tell them that Jesus fulfilled prophecies (over 300), He defeated death, and He gives life. As believers, we should be excited about what Jesus has done for us. Following Jesus isn't just part of our lives, it overflows into everything we do. Our excitement should spill over into love and witness to the would around us.