Charles Finney emphasizes the concept of 'Gospel Liberty,' urging believers to stand firm in the freedom that Christ provides, which liberates them from the burdens of legalism and the yoke of bondage represented by the ceremonial law. He explains that true liberty is found in the spirit of love and obedience, rather than mere adherence to rules, and warns against the dangers of becoming entangled again in legalistic practices that stifle spiritual growth. Finney highlights that Christ makes us free by instilling His spirit within us, allowing us to fulfill the law joyfully and willingly. He encourages Christians to rely on faith and the indwelling Spirit of Christ to maintain their freedom and avoid the pitfalls of bondage. Ultimately, he calls for a return to the essence of love in our relationship with God, which is the true source of liberty.