How do we know salvation does not come from the works of the law?

In the sermon, it is explained that salvation does not rely on the works or rituals of the law, but instead comes solely by the grace of God. Romans 3:28 emphasizes that a man is justified by faith apart from the deeds of the law, indicating the futility of seeking righteousness through our efforts. The law serves to expose our sinfulness and inability to achieve righteousness on our own, directing us instead to trust in Christ's finished work and righteousness for our salvation (Romans 3:19-24).