Jesus’ objective on the earth was to initially save His people from their sins. His people were the Jews, who were trying to obey the Law of Moses. The Law of Moses was the Ten Commandments, which later included 613 laws that derived from the original ten.
Although it sounds like an oxymoron, when God gave the Ten Commandments, it wasn’t intended to make the people good. The Law’s ultimate objective was to show people their sins, and demonstrate their need for a Savior (Romans 3:20, Galatians 3:19, AMP). In doing so, it brought sin to the forefront, amplifying the sinfulness of the people. The Law illustrated a glaring separation between God—Who is perfect—and human beings, who are not (2 Corinthians 3:7, 8). The Law was impossible to obey. For instance, if a person broke just one of the laws, he was guilty of breaking them all (James 2:10). And when he did, curses, death, guilt, condemnation, and various punishments followed (Deuteronomy 28:15-68). The Jewish people sacrificed animals as sin offerings, which temporarily atoned for sin, but it did not permanently bridge the gap between God and mankind (Hebrews 9:11-29).