John Wesley addresses the inefficiency of Christianity, questioning why it has not brought about the spiritual healing it promises. He highlights the widespread ignorance of true Christianity among both Christians and non-Christians, suggesting that many who identify as Christians do not truly understand or practice their faith. Wesley emphasizes the need for self-denial and Christian discipline, arguing that without these, the teachings of Christianity cannot have their intended effect. He calls for a return to the principles of giving and selflessness, warning that the accumulation of wealth can lead to spiritual decline. Ultimately, Wesley urges believers to embody the teachings of Christ in their daily lives to truly reflect the transformative power of Christianity.