This is a question that has created confusion for many Christians; If the works of the law cannot save a person, is it therefore necessary to keep the law of God? Well, this is not a question of this time, apparently this was the same question in the early church, because Paul asked the same question in Rom. 6:1 Shall we continue in sin, that grace may abound? Now, what is sin? 1 John 3:4 (KJV)
Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.
Is like saying in other words, does grace give us a license to disobey the law of God?
Paul answer his own question like this: God FORBID. How shall we, that are dead to sin, live any longer therein? Rom 6:2.
So, why is it that many Christians in this age can still invent their own definitions that condone lawbreaking?
The Bible is so clear, sin is violating the Ten Commandments, or the law of God, which has been described as irrelevant and old-fashioned by many modern theologian! Please my friends dont be deceived; His law is just as timely and needful today as they were when God wrote them in stone with His own finger.
Jesus did not came to void the law instead He came to magnify the law and to open up its spiritual application, making it more comprehensive than the legalistic Pharisees ever imagined.
Now is true that the law cannot save a single soul, but dont forget that the law points out sin, but it cannot save because there is not justifying, cleansing grace in it. All the works of all the laws would not be sufficient to save, for the simple reason that we are saved by grace through faith, as a free gift. (Rom. 3:20)
The law was not made for the purpose of saving or justifying; Not in the OT nor in the NT, it was made to show us our need of cleansing and to point us to the great source of cleansing, Jesus Christ, our Lord. That is why the Bible speaks of the law as a mirror to show us what kind of persons we are:
For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was. But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed (James 1:2325).
"If you love Me, keep My Commandments" Jn. 14:15.