The sermon emphasizes that Jesus did not abolish the law and the prophets but fulfilled them, underscoring the enduring authority of God's word and the importance of understanding its deeper meaning. Drawing from Matthew 5 and Galatians 6, the message clarifies that while the law reveals our inability to achieve righteousness, Jesus's life, death, and resurrection provide a grace-filled alternative, offering a righteousness that surpasses even the most devout adherence to the law. Ultimately, the sermon calls listeners to recognize Christ as the ultimate authority, urging them to seek and believe his words as the foundation for their faith and a pathway to eternal life.