John Wesley reflects on the value of his brother's hymns, contrasting them with the works of contemporary writers who may charm with their eloquence but lack true understanding of God. He recounts an anecdote about Mr. Garrick allegedly throwing Wesley's hymns overboard, which he finds hard to believe, asserting that his brother's poetic and theological depth surpasses that of many celebrated authors. Wesley emphasizes the importance of recognizing the spiritual significance of hymns and their role in guiding believers towards a deeper relationship with God. He concludes with a powerful sermon that resonates with his audience, many of whom are visibly moved.