When the Bible speaks of “the law,” it refers to the detailed standard God gave to Moses, beginning in Exodus 20with the Ten Commandments. God’s Law explained His requirements for a holy people and included three categories: civil, ceremonial, and moral laws. The Law was given to separate God’s people from the evil nations around them and to define sin (Ezra 10:11; Romans 5:13; 7:7). The Law also clearly demonstrated that no human being could purify himself enough to please God—i.e., the Law revealed our need for a Savior.
By New Testament times, the religious leaders had hijacked the Law and added to it their own rules and traditions (Mark 7:7–9). While the Law itself was good, it was weak in that it lacked the power to change a sinful heart (Romans 8:3). Keeping the Law, as interpreted by the Pharisees, had become an oppressive and overwhelming burden (Luke 11:46).