How do we know the law reveals our sin?

The law of God serves as a mirror that exposes the true nature of our hearts, demonstrating how far we fall short of its demands. As Paul articulates in Romans, it is through the law that we gain the knowledge of sin (Romans 3:20). When confronted with the requirements of the law, such as loving God wholly or loving our neighbor, a person becomes acutely aware of their own sinful inclinations and the impossibility of fulfilling the law's demands. This realization is crucial for leading an individual to seek out the grace found in Christ, as it highlights the need for salvation apart from works.