How do we know the law points us to our need for a Savior?

The law serves a crucial function in the life of a believer by providing the knowledge of sin, as articulated in Romans 3:20, which states that through the law comes the knowledge of sin. The purpose of the law is not to save but to highlight our inability to attain righteousness on our own, thus leading us to recognize our need for a Savior. This is further emphasized in Galatians 3:24, where the law is described as a schoolmaster that brings us to Christ, guiding us to the recognition that we are in desperate need of grace. The realization of our failure to meet God’s standards humbles us and drives us to seek the only remedy, which is found in Jesus Christ.