J.C. Philpot preaches on the importance of soul-prosperity, drawing from 3 John 2 where John wishes Gaius to prosper and be in health as his soul prospers. Philpot explains the difference between soul-sickness and soul-health, emphasizing the spiritual well-being over temporal blessings. He delves into the symptoms, causes, and cure of soul-sickness, highlighting the need for afflictions to cut into the wound before healing can occur. Philpot also explores the symptoms and causes of spiritual health, pointing out the signs of a prosperous soul like a lively heart for God, prayerfulness, affection for God's people, and humility. He stresses the importance of spiritual prosperity over worldly success, as true health comes from a thriving relationship with God.