I think we agree that the law can point out our need for Christ as Paul mentioned to the Galatians, but I think where we might not agree in our beliefs is that the law can also be beneficial after we are born again for correction, and instructions in righteousness, both the old and new together confirming this, for there is only one unchanging God and Lord. Malachi and Hebrews. Would you not agree that our Savior gave the law to Israel via Moses? Colossians chapter 1
you who have received the law that was given through angels but have not obeyed it Acts 7:53, but a minor point!
The law remains within you on your heart and mind throughout your Christian life and convicts you of sin when you err.