How does the law reveal our need for grace?

The law was given not to justify us, but to demonstrate our shortcomings and need for salvation through grace. In Romans 3:20, we see that the law brings the knowledge of sin, showing that rather than justifying ourselves through works, we become aware of our limitations and sinfulness. This revelation drives us to seek Christ, who alone can fulfill the law's demands and provide righteousness. The law functions as a schoolmaster leading us to the grace found in Jesus Christ, reminding us that our salvation does not depend on our efforts but on His finished work (Galatians 3:24).