John Nelson Darby emphasizes the significance of the Holy Ghost's presence on earth, highlighting Christ's multifaceted identity as the Lamb of God and the Baptizer with the Holy Ghost. He explains that through Christ's work, believers are granted a relationship with God, empowered by the Holy Spirit, which allows them to experience divine love and grace. Darby contrasts the rejection of Christ by the world with the grace offered to those who accept Him, underscoring the transformative power of the Holy Spirit in the lives of believers. He concludes by affirming that the Holy Ghost not only seals believers but also enables them to live in accordance with Christ's example, fostering a deep relationship with God as their Father.