Why is it important for Christians to understand the law?

The law is crucial for Christians as it illustrates the standard of holiness that God requires and highlights humanity's inability to fulfill that standard. Paul explains in Romans 7 that without the law, he would not have known sin; it is the law that convicts us and leads to a realization of our need for grace. Christians must understand the law to grasp the significance of Christ's atoning sacrifice—He fulfilled the law perfectly, allowing believers to be justified by faith in Him rather than their own works. This understanding fosters humility and reliance on Christ, not on personal merit, and affirms the doctrine of justification by faith alone.