Witnessed by the Law and the Prophets

 "This is the great argument of Romans 3:19-21: “Now we know that what things so ever the law says, it says to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God. Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin. But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets.” 

 
Then the question comes in, “Do we then make void the law through faith?

God forbid; yea, we establish the law.” Notice, he had already said that although this righteousness of God is “without the law,” and by faith of Christ, yet it is “witnessed by the law and the prophets.” It is a righteousness that accords with the law; it is a righteousness to which the law can bear witness.

  

This is yet further shown in Romans 8:3-10: “For what the law could not do, in that it was weak through the flesh, 

---God sending his own Son in the likeness of sinful flesh, 

and for sin, condemned sin in the flesh: 

---that the righteousness of the law might be fulfilled in us, who walk not after the flesh, but after the Spirit.”A.T. Jones