How do we know the law is not sin?

In Romans 7:7, Paul asks, 'Is the law sin? God forbid.' Here, he establishes that the law itself is good and holy, serving to expose our sinful nature rather than being sinful itself. It is through the commandments that we understand the depths of our transgressions. The law reveals what is sinful, which allows us to see our desperate condition. The law was given by God with a purpose—to clarify our need for grace by demonstrating that we are unable to fulfill its requirements on our own. Thus, instead of viewing the law negatively, we should see it as a means of bringing us to Christ.