The sermon centers on the foundational truth that justification before God comes not through obedience to the law, but through faith in Christ alone, as revealed in Galatians 3. It emphasizes that the law, while holy and good, cannot justify because it demands perfect, continuous obedience—something no one can achieve—thus leaving all under its curse. In contrast, faith in Christ, exemplified by Abraham and affirmed by Habakkuk, is the only means by which the righteous live, not by works but by trusting in God's grace. The sermon underscores that the law was never intended to be a means of salvation but a tutor leading to Christ, and that true righteousness is not found in self-effort or moral comparison, but in abiding faith in the finished work of Christ. Ultimately, the greatness of Christ is revealed in His perfect obedience, His substitutionary sacrifice, and His power to transform lives through grace, calling believers to live not by the law's demands, but by love and faith, empowered by His Spirit.