How do we know the law was given to show our need for Christ?

The law serves as a mirror reflecting the sinful condition of humanity, demonstrating our incapacity to achieve righteousness on our own. Galatians 2:16 clarifies that a person cannot be justified by the works of the law but only through faith in Jesus Christ. The Scriptures indicate that the law was given to Israel not for them to fulfill it for salvation, but to reveal their inherent sinfulness, akin to Adam’s transgression. Therefore, the very purpose of the law is to drive us to Christ, the only one who fulfilled the law's demands on behalf of His elect people, ensuring that we recognize our deep need for Him as our Savior and Redeemer.