Charles Finney emphasizes the stark contrast between the hard ways of sin and the pleasant paths of holiness, illustrating that true religion is a heartfelt devotion to God that brings peace and joy. He explains that sin leads to constant turmoil and dissatisfaction, while a life devoted to God is naturally easy and fulfilling. Finney argues that true religion requires repentance, confidence in God, and a commitment to love others, which ultimately leads to a harmonious existence. He warns that a life of selfishness is a path of self-destruction, while embracing God's ways results in true happiness and fulfillment. The sermon calls for individuals to recognize the futility of sin and the joy found in a relationship with God.