J.C. Ryle emphasizes the dual nature of Christ as both fully God and fully man, illustrating how His presence does not exempt believers from earthly troubles, as seen in the disciples' fear during the storm. He encourages Christians to deepen their familiarity with the Gospels to truly know Christ, who offers both power and sympathy in times of distress. Ryle reassures that while believers may experience weakness and doubt, Christ's patience and compassion remain steadfast, reminding them that He is always present to calm their storms. The sermon highlights the importance of understanding Christ's power over all creation and His tender care for His followers, especially in their moments of fear and uncertainty.