In this sermon from Matthew chapter 5, we explore the profound teachings of Jesus on Kingdom ethics, focusing on the fulfillment of the law and the prophets. Jesus, in His Sermon on the Mount, challenges us to understand the law not merely as a set of rigid rules but as a guide to living a life that reflects the heart of God. His teaching confronts two common errors: antinomianism, which dismisses the law, and legalism, which attempts to earn God's favor through strict adherence to rules. Jesus fulfilled the law by embodying its true intent and purpose.

Jesus' fulfillment of the law is multifaceted. He fulfills it predictively, as the law and prophets point to Him as the Messiah. He fulfills it ethically, living a sinless life that exemplifies perfect obedience to God's commands. He fulfills it exemplarily, providing a model for us to follow in holiness and righteousness. Moreover, He fulfills it in His disciples, empowering us through the Holy Spirit to live out the righteous requirements of the law (Romans 8:1-4).

The heart of Jesus' teaching is a call to internal righteousness, a transformation that goes beyond external compliance. He emphasizes the importance of the heart's condition, teaching that anger equates to murder and lust to adultery. This internalization of the law calls us to a higher standard, one that values life, integrity, and purity. Jesus underscores the sacredness of marriage, urging us to honor this covenant as a reflection of God's relationship with His people.

In addressing sin, Jesus advocates for radical measures, not through physical mutilation but through the mortification of sin in our hearts. The law serves as a mirror, revealing our need for a Savior, and pointing us to Christ, who empowers us to live righteously. As kingdom citizens, we are called to be peacemakers, valuing reconciliation and embodying the love and grace of God in our relationships.