G.W. North emphasizes the unique role of Peter in the establishment of the Church, highlighting how Jesus bestowed upon him the keys of the Kingdom, granting him a singular authority to open the Kingdom of God to all people. This divine appointment underscores the importance of accepting God's choices and gifts with humility, as Peter was tasked with the responsibility of leading others to faith and the Holy Spirit. On the day of Pentecost, Peter fulfilled this promise, demonstrating his pivotal role in spreading the gospel to Jerusalem, Judea, and Samaria, and ultimately to the Gentiles. North illustrates that Peter's ministry was essential for the inclusion of all believers into the Kingdom, as he was the key figure in ensuring that the Samaritans received the Holy Spirit. The sermon calls for recognition of God's sovereign decisions in the distribution of spiritual authority and the importance of fulfilling one's God-given responsibilities.