The sermon explores the meaning of believing in Jesus Christ, clarifying that it extends beyond mere acknowledgment of faith to encompass a complete abandonment of self-reliance and a reliance on God's grace. Drawing from Scripture, the message emphasizes the necessity of hearing and understanding God's testimony about Christ, recognizing the law's role in revealing sin and the need for a personal call upon Christ for salvation. Ultimately, the sermon underscores that true faith involves acknowledging Christ as righteousness, salvation, and Lord, and receiving the blessings He earned for all who trust in Him.