C. THE TWO PARTS OF THE WORD OF GOD CONSIDERED AS A MEANS OF GRACE.
1. THE LAW AND THE GOSPEL IN THE WORD OF GOD. The Churches of the Reformation from the very beginning distinguished between the law and the gospel as the two parts of the Word of God as a means of grace. This distinction was not understood to be identical with that between the Old and the New Testament, but was regarded as a distinction that applies to both Testaments. There is law and gospel in the Old Testament, and there is law and gospel in the New. The law comprises everything in Scripture which is a revelation of God’s will in the form of command or prohibition, while the gospel embraces everything, whether it be in the Old Testament or in the New, that pertains to the work of reconciliation and that proclaims the seeking and redeeming love of God in Christ Jesus. And each one of these two parts has its own proper function in the economy of grace. The law seeks to awaken in the heart of man contrition on account of sin, while the gospel aims at the awakening of saving faith in Jesus Christ. The work of the law is in a sense preparatory to that of the gospel. It deepens the consciousness of sin and thus makes the sinner aware of the need of redemption. Both are subservient to the same end, and both are indispensable parts of the means of grace. This truth has not always been sufficiently recognized. The condemning aspect of the law has sometimes been stressed at the expense of its character as a part of the means of grace. Ever since the days of Marcion there have always been some who saw only contrast between the law and the gospel and proceeded on the assumption that the one excluded the other. They based their opinion in part on the rebuke which Paul administered to Peter (Gal. 2:11-14), and partly on the fact that Paul occasionally draws a sharp distinction between the law and the gospel and evidently regards them as contrasts, II Cor. 3:6-11; Gal. 3:2,3,10-14; cf. also John 1:17. They lost sight of the fact that Paul also says that the law served as a tutor to lead men to Christ, Gal. 3:24, and that the Epistle to the Hebrews represents the law, not as standing in antithetical relation to the gospel, but rather as the gospel in its preliminary and imperfect state.
Some of the older Reformed theologians represented the law and the gospel as absolute opposites. They thought of the law as embodying all the demands and commandments of Scripture, and of the gospel, as containing no demands whatsoever, but only unconditional promises; and thus excluded from it all requirements. This was partly due to the way in which the two are sometimes contrasted in Scripture, but was also partly the result of a controversy in which they were engaged with the Arminians. The Arminian view, making salvation dependent on faith and evangelical obedience as works of man, caused them to go to the extreme of saying that the covenant of grace does not require anything on the part of man, does not prescribe any duties, does not demand or command anything, not even faith, trust, and hope in the Lord, and so on, but merely conveys to man the promises of what God will do for him. Others, however, correctly maintained that even the law of Moses is not devoid of promises, and that the gospel also contains certain demands. They clearly saw that man is not merely passive, when he is introduced into the covenant of grace, but is called upon to accept the covenant actively with all its privileges, though it is God who works in him the ability to meet the requirements. The promises which man appropriates certainly impose upon him certain duties, and among them the duty to obey the law of God as a rule of life, but also carry with them the assurance that God will work in him “both to will and to do.” The consistent Dispensationalists of our day again represent the law and the gospel as absolute opposites. Israel was under the law in the previous dispensation, but the Church of the present dispensation is under the gospel, and as such is free from the law. This means that the gospel is now the only means of salvation, and that the law does not now serve as such. Members of the Church need not concern themselves about its demands, since Christ has met all its requirements. They seem to forget that, while Christ bore the curse of the law, and met its demands as a condition of the covenant of works, He did not fulfil the law for them as a rule of life, to which man is subject in virtue of his creation, apart from any covenant arrangement.
2. NECESSARY DISTINCTIONS RESPECTING THE LAW AND THE GOSPEL.
a. As was already said in the preceding, the distinction between the law and the gospel is not the same as that between the Old and the New Testament. Neither is it the same as that which present day Dispensationalists make between the dispensation of the law and the dispensation of the gospel. It is contrary to the plain facts of Scripture to say that there is no gospel in the Old Testament, or at least not in that part of the Old Testament that covers the dispensation of the law. There is gospel in the maternal promise, gospel in the ceremonial law, and gospel in many of the Prophets, as Isa. 53 and 54; 55:1-3,6.7; Jer. 31:33,34; Ezek. 36:25-28. In fact, there is a gospel current running through the whole of the Old Testament, which reaches its highest point in the Messianic prophecies. And it is equally contrary to Scripture to say that there is no law in the New Testament, or that the law does not apply in the New Testament dispensation. Jesus taught the permanent validity of the law, Matt. 5:17-19. Paul says that God provided for it that the requirements of the law should be fulfilled in our lives, Rom. 8:4, and holds his readers responsible for keeping the law, Rom. 13:9. James assures his readers that he who transgresses a single commandment of the law (and he mentions some of these), is a transgressor of the law, Jas. 2:8-11. And John defines sin as “lawlessness,” and says that this is the love of God, that we keep His commandments, I John 3:4; 5:3.
b. It is possible to say that in some respects the Christian is free from the law of God. The Bible does not always speak of the law in the same sense. Sometimes it contemplates this as the immutable expression of the nature and will of God, which applies at all times and under all conditions. But it also refers to it as it functions in the covenant of works, in which the gift of eternal life was conditioned on its fulfilment. Man failed to meet the condition, thereby also losing the ability to meet it, and is now by nature under a sentence of condemnation. When Paul draws a contrast between the law and the gospel, he is thinking of this aspect of the law, the broken law of the covenant of works, which can no more justify, but can only condemn the sinner. From the law in this particular sense, both as a means for obtaining eternal life and as a condemning power, believers are set free in Christ, since He became a curse for them and also met the demands of the covenant of works in their behalf. The law in that particular sense and the gospel of free grace are mutually exclusive.
c. There is another sense, however, in which the Christian is not free from the law.
The situation is quite different when we think of the law as the expression of man’s natural obligations to his God, the law as it is applied to man even apart from the covenant of works. It is impossible to imagine any condition in which man might be able to claim freedom from the law in that sense. It is pure Antinomianism to maintain that Christ kept the law as a rule of life for His people, so that they need not worry about this any more. The law lays claim, and justly so, on the entire life of man in all its aspects, including his relation to the gospel of Jesus Christ. When God offers man the gospel, the law demands that the latter shall accept this. Some would speak of this as the law in the gospel, but this is hardly correct. The gospel itself consists of promises and is no law; yet there is a demand of the law in connection with the gospel. The law not only demands that we accept the gospel and believe in Jesus Christ, but also that we lead a life of gratitude in harmony with its requirements.
Source: Systematic Theology by Louis Berkhof