What role does God's law play in understanding salvation?

The law of God serves as a mirror, reflecting our shortcomings and highlighting our need for a Savior. Romans 3:20 states that through the law comes the knowledge of sin. This was evident in Jesus' response to the lawyer; He redirected the lawyer's focus from his own self-righteousness to the severity of the law. The law exposes our inability to meet God's perfect standard, thereby pointing us to Christ who fulfilled the law on our behalf (Matthew 5:17). It is through recognizing this need for grace that we can fully appreciate the salvation offered through faith in Jesus.