John Nelson Darby presents the Gospel of Luke as a portrayal of Jesus in His humanity, emphasizing His role as the Son of Man and the grace of God amidst human struggles. He highlights the significance of Luke's account, which focuses on Christ Himself rather than His official roles or divine nature, and illustrates the unfolding of God's plan through the lives of ordinary people like Zacharias and Mary. The sermon underscores the importance of faith, humility, and the fulfillment of God's promises, as seen in the miraculous births of John the Baptist and Jesus. Darby also draws attention to the joy and praise that arise from recognizing God's grace and intervention in the lives of His people.