A lesson on the absolute sufficiency of Christ's righteousness for our justification, received by faith alone apart from works of the law. The sermon centers on the foundational Christian doctrine of justification by faith alone, emphasizing that no human effort, law-keeping, or moral achievement can make a person right with God. Drawing from Galatians 2:15–16, it argues that salvation is not earned through works of the law—such as obedience to Jewish ceremonial or moral codes—but is received solely through faith in Jesus Christ, whose perfect righteousness is imputed to believers. The preacher underscores the impossibility of achieving righteousness through human effort, highlighting the fallen nature of humanity and the holiness of God, which demands perfect conformity to His law. In contrast, the gospel offers freedom: Christ's active and passive obedience are credited to sinners, enabling them to stand justified before God not by their own merit but by grace alone. The sermon warns against any addition of works or obedience to faith as a means of justification, affirming that such additions undermine Christ's finished work and distort the true gospel, which is the cornerstone of the Church's existence and the source of lasting assurance and joy.