No subject is more intimately bound up with the nature of the gospel than that of law and grace. In the degree to which error is entertained at this point, in the same degree is our conception of the gospel perverted. An erroneous conception of the function of law can be of such a character that it completely vitiates our view of the gospel; and an erroneous conception of the antithesis between law and grace can be of such a character that it demolishes both the substructure and the superstructure of grace.
Nothing could advertise this more than that two of the major Epistles of the New Testament, and the two most polemic, have this subject as their theme. Our attention is irresistibly drawn to the gravity of the issue with which the apostle is concerned in his Epistle to the Galatians, when we read at the outset, “But, even if we, or an angel from heaven, preach to you any gospel other than that which we have preached to you, let him be anathema. As we have said before, so now again I say, if anyone preach any gospel to you other than that which ye received, let him be anathema” (Galatians 1:8-9). And, we are no less startled when we read, in the same apostle’s Epistle to the Romans, “I say the truth in Christ, I lie not, my conscience bearing witness with me in the Holy Spirit, that I have great sorrow and unceasing pain in my heart. For, I could wish that I, myself, were anathema from Christ on behalf of my brethren, my kinsmen according to the flesh” (Romans 9:1-3).
What was the question that aroused the apostle to such passionate zeal and holy indignation, indignation that has its kinship with the imprecatory utterances of the Old Testament? In a word, it was the relation of law and gospel. “I do not make void the grace of God: for, if righteousness is through the law, then Christ died in vain” (Galatians 2:21). “For, if a law had been given which could make alive - verily, from the law, righteousness would have been” (Galatians 3:21). “By the works of the law shall no flesh be justified in His sight” (Romans 3:20).
The simple truth is, that, if law is conceived of as contributing, in the least degree, towards our acceptance with God and our justification by Him, then the gospel of grace is a nullity. And the issue is so sharply and incisively drawn that, if we rely, in any respect, upon compliance with law for our acceptance with God, then Christ will profit nothing. “Ye have been discharged from Christ, whosoever of you are justified by law; ye have fallen away from grace” (Galatians 5:4). But, lest we should think that the whole question of the relation of law and grace is, thereby, resolved, we must be reminded that Paul says also, in this polemic, “Do we, then, make void the law through faith? God forbid - yea, we establish the law” (Romans 3:31).
We are compelled, therefore, to recognize that the subject of law and grace is not simply concerned with the antithesis that there is between law and grace but, also, with law as that which makes grace necessary and with grace as establishing and confirming law. It is not only the doctrine of grace that must be jealously guarded against distortion by works of the law, but it is, also, the doctrine of law that must be preserved against the distortions of a spurious concept of grace. This is just saying that we are but echoing the total witness of the apostle of the Gentiles as the champion of the gospel of grace when we say that we must guard grace from the adulteration of legalism and we must guard law from the depradations of antinomianism.
In relation to the topic with which we are concerned now, it is the latter that must claim our attention. What is the place of law in the economy of grace?
From: Principles of Conduct: Aspects of Biblical Ethics by John Murray (Grand Rapids: William B. Eerdmans Publishing Company, 1957), pp. 181-182. This book began life as Murray’s Payton Lectures for 1955, delivered at Fuller Theological Seminary, Pasadena, California, in March of that year. This book – a considerable expansion of his lectures – is one of the most important books on Christian ethics ever published.
John Murray (1898-1975), a Scotsman, taught systematic theology at Westminster Theological Seminary, Philadelphia, Pennsylvania (1930-1966). He is probably best remembered for his two volume commentary on the Book of Romans (1959, 1965).