Paul is always doing a balancing act between the Gospel of Chirst and the Law (The Law of the Jews, civil law, moral law, law written on ones heart). If you live by the Law then Christ's work on the cross was not enough. If you live by faith in Christ then you will want to keep the law.
Here is the questions????
1) Those of us who live by faith in Jesus Christ do we have to keep the law?
2) Those who live by the law (I try to be a "good person") apart from Jesus Christ, what happens when they die?
3) What laws (civil, moral, church) have you seen changed or forgotten or done away with, over your lifetime.?