Romans 3:31

νόμον οὖν καταργοῦμεν διὰ τῆς πίστεως; Do we then annul “law” through the faith we have been discussing? Perhaps if Law were written with a capital letter, it would suggest the true meaning. The Apostle speaks as from the consciousness of a Jewish objector: is all that we have ever called Law the whole Jewish religion that divinely established order, and everything of the same nature made void by faith? God forbid, he answers: on the contrary, Law is set upon a secure footing; for the first time it gets its rights. To prove this was one of the main tasks lying upon the Apostle of the New Covenant. One species of proof is given in chap 4, where he shows that representative saints under the Old Dispensation, like Abraham, were justified by faith. That is the Divine order still, and it is securer than ever under the Gospel. Another kind of proof is given in chaps. 6 8, where the new life of the Christian is unfolded, and we are shown that “the just demands of the law” are fulfilled in believers, and in believers only. The claim which the Apostle makes here, and establishes in these two passages, is the same as that in our Lord's words: I came not to destroy (the law or the prophets), but to fulfil.