Law and Gospel in Pauline Theology: Torah, Grace, and the Third Use of the Law

Introduction

When Martin Luther nailed his Ninety-Five Theses to the Wittenberg church door on October 31, 1517, he ignited a theological revolution centered on a single question: How does a sinner stand righteous before a holy God? Luther's answer—by grace through faith alone, apart from works of the law—became the rallying cry of the Protestant Reformation. Yet this answer raised an immediate problem: What role, if any, does God's law play in the life of the believer? If we are justified by faith apart from the law, does the law become obsolete?

Paul wrestled with this exact tension throughout his letters. In Romans 3:20, he declares that "by works of the law no human being will be justified," yet just eleven verses later he insists, "Do we then overthrow the law by this faith? By no means! On the contrary, we uphold the law" (Romans 3:31). He calls the law "holy and righteous and good" (Romans 7:12) while simultaneously proclaiming that "Christ is the end of the law" (Romans 10:4). In Galatians 3:10, he warns that "all who rely on works of the law are under a curse," yet in Romans 13:10 he affirms that "love is the fulfilling of the law."

This article examines Paul's complex relationship with the Mosaic law, tracing his arguments through Romans and Galatians while engaging three major interpretive traditions: the Lutheran law-gospel dialectic, the Reformed doctrine of the third use of the law, and the New Perspective on Paul pioneered by E.P. Sanders in 1977. I argue that Paul's seemingly contradictory statements about the law reflect a consistent theological framework: the law reveals God's righteous standard and continues to guide believers, but it cannot justify sinners or empower obedience apart from the Spirit's work in Christ.

Biblical Foundation

Paul's Negative Statements About the Law

Paul's most forceful critiques of the law appear in Galatians, written around AD 48-49 to combat Judaizing teachers who insisted that Gentile converts must be circumcised and observe the Mosaic law. In Galatians 2:16, Paul states his thesis with stark clarity: "We know that a person is not justified by works of the law but through faith in Jesus Christ." He reinforces this in 2:21: "If righteousness were through the law, then Christ died for no purpose." The logic is airtight—if law-keeping could make us righteous, Christ's death was unnecessary.

In Galatians 3:10-13, Paul quotes Deuteronomy 27:26 to demonstrate that "all who rely on works of the law are under a curse," because the law demands perfect obedience: "Cursed be everyone who does not abide by all things written in the Book of the Law, and do them." Since no one achieves perfect obedience, the law functions as a curse rather than a blessing. Christ redeems us from this curse by becoming "a curse for us" (Galatians 3:13), bearing the penalty we deserved.

Romans 3:19-20 explains the law's diagnostic function: "Now we know that whatever the law says it speaks to those who are under the law, so that every mouth may be stopped, and the whole world may be held accountable to God. For by works of the law no human being will be justified in his sight, since through the law comes knowledge of sin." The law reveals sin but cannot cure it. As Douglas Moo observes in his 1996 commentary on Romans, the law functions like a thermometer that diagnoses fever but cannot reduce it—it identifies the problem without providing the solution.

Paul's statement that "Christ is the end of the law" (Romans 10:4) has sparked intense debate. Does telos mean "termination" or "goal"? Thomas Schreiner argues in The Law and Its Fulfillment (1993) that both meanings are present: Christ is the goal toward which the law pointed, and he brings the law's condemning function to an end for those who believe. The law's role as a means of justification has terminated, but its role as a revelation of God's character continues.

Paul's Positive Statements About the Law

Despite his negative statements, Paul repeatedly affirms the law's goodness. In Romans 7:12, he declares, "So the law is holy, and the commandment is holy and righteous and good." The problem is not with the law itself but with human inability to keep it. Romans 7:14 explains: "For we know that the law is spiritual, but I am of the flesh, sold under sin." The law is spiritual—it reflects God's perfect character—but fallen humanity is fleshly, enslaved to sin and unable to obey.

Romans 8:3-4 reveals how God solves this dilemma: "For God has done what the law, weakened by the flesh, could not do. By sending his own Son in the likeness of sinful flesh and for sin, he condemned sin in the flesh, in order that the righteous requirement of the law might be fulfilled in us, who walk not according to the flesh but according to the Spirit." The law's requirement is fulfilled not by our striving but by the Spirit's empowerment in those united to Christ.

In Romans 13:8-10, Paul connects law-keeping to love: "Owe no one anything, except to love each other, for the one who loves another has fulfilled the law. For the commandments, 'You shall not commit adultery, You shall not murder, You shall not steal, You shall not covet,' and any other commandment, are summed up in this word: 'You shall love your neighbor as yourself.' Love does no wrong to a neighbor; therefore love is the fulfilling of the law." Frank Thielman, in Paul and the Law (1994), argues that Paul sees love as the law's essence—when believers love through the Spirit's power, they fulfill what the law always intended.

Galatians 5:14 makes the same point: "For the whole law is fulfilled in one word: 'You shall love your neighbor as yourself.'" Yet Paul immediately warns against using freedom as "an opportunity for the flesh" (Galatians 5:13) and lists the "works of the flesh" (5:19-21) that exclude people from God's kingdom. The law's moral content remains binding, even though believers are no longer "under law" as a system of justification (Galatians 5:18).

The Law's Pedagogical Role

Galatians 3:23-25 describes the law as a paidagōgos—a household slave who supervised children until they reached maturity: "Now before faith came, we were held captive under the law, imprisoned until the coming faith would be revealed. So then, the law was our guardian until Christ came, in order that we might be justified by faith. But now that faith has come, we are no longer under a guardian." The law served a temporary, preparatory function, guarding Israel until Christ arrived. Once Christ came, the law's role as guardian ended.

This does not mean the law is abolished. Rather, its function has changed. As Richard Hays notes in The Moral Vision of the New Testament (1996), Paul distinguishes between being "under law" (subject to its condemning power) and "upholding the law" (affirming its moral content). Believers are no longer under the law's curse, but they fulfill the law's requirements through Spirit-empowered love.

Theological Analysis

The Three Uses of the Law in Reformation Theology

The Reformation tradition, building on medieval precedents, identified three distinct "uses" (usus) of the law. The first use, usus politicus or civil use, restrains evil in society through the threat of punishment. Even unbelievers recognize basic moral norms—murder is wrong, theft is wrong—and civil law enforces these norms to maintain social order. This use of the law is grounded in Romans 13:1-7, where Paul describes governing authorities as "God's servant for your good" who "bears the sword" to execute wrath on wrongdoers.

The second use, usus elenchticus or theological use, reveals sin and drives sinners to Christ. The law functions as a mirror that shows us our moral failure and our need for a Savior. Luther emphasized this use in his 1535 Lectures on Galatians, arguing that the law's primary function is to condemn and terrify the conscience, forcing sinners to flee to Christ for mercy. This use is grounded in Romans 3:20 ("through the law comes knowledge of sin") and Galatians 3:24 (the law as our guardian until Christ came).

The third use, usus didacticus or tertius usus legis, guides believers in holy living. Calvin emphasized this use in his 1559 Institutes of the Christian Religion (Book II, Chapter 7), arguing that the law's "principal use" is "to learn more thoroughly each day the nature of the Lord's will" and to be "aroused to obedience." For Calvin, the law remains a positive guide for sanctification, showing believers how to express gratitude for salvation through concrete obedience.

This difference between Luther and Calvin continues to shape Lutheran and Reformed ethics. Lutherans tend to emphasize the law's condemning function and warn against using it as a guide for Christian living, fearing legalism. Reformed theologians affirm the law's ongoing positive role in sanctification, arguing that the moral law (summarized in the Ten Commandments) reflects God's unchanging character and therefore remains binding on believers. As John Frame notes in The Doctrine of the Christian Life (2008), this debate centers on whether the law primarily condemns or primarily guides—and whether believers relate to the law primarily through fear or through love.

The New Perspective on Paul: Redefining "Works of the Law"

In 1977, E.P. Sanders published Paul and Palestinian Judaism, a landmark study that challenged the traditional Protestant reading of Paul. Sanders argued that first-century Judaism was not a religion of works-righteousness (earning salvation through obedience) but of "covenantal nomism"—God graciously elected Israel and gave the law as a guide for maintaining covenant relationship. Obedience was a response to grace, not a means of earning it. Sanders concluded that Paul's critique of "works of the law" was not aimed at Jewish legalism (which didn't exist in the way Protestants imagined) but at the law's inability to incorporate Gentiles into God's people.

James Dunn built on Sanders's work in his 1982 article "The New Perspective on Paul," arguing that "works of the law" in Paul refers specifically to Jewish identity markers—circumcision, dietary laws, and Sabbath observance—that functioned as ethnic boundary markers separating Jews from Gentiles. Paul's objection was not to earning salvation through good works but to excluding Gentiles from the covenant community based on ethnic identity. Galatians 2:11-14, where Paul confronts Peter for withdrawing from table fellowship with Gentiles, illustrates this social dimension of Paul's argument.

N.T. Wright developed this perspective further in What Saint Paul Really Said (1997) and Paul and the Faithfulness of God (2013), arguing that Paul's central concern was not individual justification but the redefinition of God's people around Christ rather than Torah. "Justification by faith" means that membership in God's covenant community is determined by faith in Jesus, not by Torah observance. Wright emphasizes Romans 3:29-30: "Or is God the God of Jews only? Is he not the God of Gentiles also? Yes, of Gentiles also, since God is one—who will justify the circumcised by faith and the uncircumcised through faith."

Critiques of the New Perspective

The New Perspective has been both influential and controversial. Stephen Westerholm, in Perspectives Old and New on Paul (2004), argues that while Sanders corrected caricatures of Judaism, he underestimated the extent to which Paul's critique of the law is anthropological and universal, not merely sociological and ethnic. Romans 1:18-3:20 demonstrates that all humanity—both Jews and Gentiles—stands condemned before God, unable to achieve righteousness through any form of law-keeping. Paul's argument is not merely about Jewish identity markers but about the fundamental human inability to obey God's law.

Thomas Schreiner, in The Law and Its Fulfillment (1993), contends that "works of the law" includes but is not limited to identity markers. When Paul says "by works of the law no human being will be justified" (Romans 3:20), he means all law-keeping, not just circumcision and dietary laws. Romans 2:13 states, "For it is not the hearers of the law who are righteous before God, but the doers of the law who will be justified"—but Paul's point is that no one is a doer of the law (Romans 3:10-12). The problem is not ethnic exclusivism but human sinfulness.

A. Andrew Das, in Paul, the Law, and the Covenant (2001), offers a mediating position. He agrees with the New Perspective that Paul's immediate concern in Galatians is the inclusion of Gentiles without requiring Torah observance. However, Das argues that Paul's argument rests on a deeper anthropological foundation: the law cannot justify because humans are enslaved to sin and unable to obey. Both dimensions—the sociological (Gentile inclusion) and the anthropological (human sinfulness)—are present in Paul's argument, and neither should be reduced to the other.

Extended Example: Romans 7 and the Believer's Struggle

Romans 7:14-25 provides a vivid case study of the law's role in the believer's life. Paul writes in the first person: "For I do not understand my own actions. For I do not do what I want, but I do the very thing I hate" (7:15). He describes an internal conflict: "For I delight in the law of God, in my inner being, but I see in my members another law waging war against the law of my mind and making me captive to the law of sin that dwells in my members" (7:22-23). The passage culminates in a cry of desperation: "Wretched man that I am! Who will deliver me from this body of death?" (7:24), followed immediately by the answer: "Thanks be to God through Jesus Christ our Lord!" (7:25).

Scholars debate whether Paul describes his pre-Christian or post-Christian experience. Augustine initially read Romans 7 as describing Paul's pre-conversion struggle under the law, but later changed his mind and read it as describing the ongoing struggle of believers. The Reformers followed Augustine's later view, seeing Romans 7 as the experience of regenerate Christians who recognize the law's goodness but struggle to obey it fully. This reading emphasizes the believer's ongoing need for grace and the Spirit's empowerment.

Others, including C.E.B. Cranfield in his 1975 commentary on Romans, argue that Paul describes the experience of someone under the law apart from the Spirit—either Paul's pre-Christian experience or the hypothetical experience of anyone trying to keep the law in their own strength. This reading emphasizes the contrast between Romans 7 (life under law) and Romans 8 (life in the Spirit). Romans 8:2 declares, "For the law of the Spirit of life has set you free in Christ Jesus from the law of sin and death," suggesting that the struggle described in Romans 7 is resolved through the Spirit's work.

Regardless of which interpretation is correct, Romans 7 illustrates a crucial point: the law reveals God's will and the believer delights in it, but the law alone cannot empower obedience. Only the Spirit, given to those who are in Christ, can produce the righteousness that the law demands. This is Paul's consistent message: the law is good, but it is powerless to save or sanctify apart from the Spirit's work.

Conclusion

Paul's treatment of the law resists simplistic categorization. He affirms the law's divine origin and moral content while denying its capacity to justify or sanctify apart from the Spirit's work in Christ. The law reveals God's righteous standard, but it cannot empower obedience. It diagnoses the disease of sin but cannot cure it. It shows us what we ought to be but cannot make us what we ought to be.

The Reformation debates over the law's uses—whether it primarily condemns (Luther) or primarily guides (Calvin)—reflect genuine tensions in Paul's own writings. Both emphases are present. The law condemns those who rely on it for justification (Galatians 3:10), yet it guides those who walk by the Spirit (Romans 8:4). The key is recognizing that the law's function changes depending on one's relationship to Christ. For those outside of Christ, the law condemns. For those in Christ, the law guides—not as an external code that threatens punishment, but as a revelation of God's character that the Spirit writes on the heart (2 Corinthians 3:3).

The New Perspective has enriched our understanding of Paul by highlighting the social dimensions of his argument—the inclusion of Gentiles into God's people without requiring Torah observance. Yet the traditional Protestant emphasis on the anthropological dimension remains valid: Paul's critique of "works of the law" includes but transcends ethnic boundary markers. The fundamental problem is not merely Jewish exclusivism but human sinfulness—the universal inability to achieve righteousness through any form of law-keeping.

For contemporary Christian ethics, this means that obedience flows from grace rather than earning it. We do not keep God's commandments to become righteous; we keep them because we have been made righteous through faith in Christ. The law no longer functions as a threatening taskmaster but as a loving guide that shows us how to express gratitude for salvation. As Sinclair Ferguson writes in The Whole Christ (2016), the gospel frees us from the law's condemnation while simultaneously freeing us for the law's guidance. We are no longer under the law as a covenant of works, but we are under the law as a rule of life, empowered by the Spirit to fulfill what the law always intended: love for God and neighbor.

Implications for Ministry and Credentialing

Understanding the law-gospel relationship is essential for pastoral ministry. Pastors who emphasize only the law's condemning function risk creating congregations paralyzed by guilt and legalism. Those who ignore the law's ongoing role as a guide for sanctification risk promoting antinomianism—the false belief that grace eliminates moral obligation. Healthy preaching maintains Paul's tension: the law cannot justify, but it reveals God's character and guides Spirit-empowered obedience.

When counseling believers struggling with assurance of salvation, pastors must distinguish between the law's second use (condemning sinners) and third use (guiding believers). A Christian who feels condemned by the law needs to hear the gospel promise: "There is therefore now no condemnation for those who are in Christ Jesus" (Romans 8:1). A Christian who uses grace as license for sin needs to hear the law's call to holiness: "For you were called to freedom, brothers. Only do not use your freedom as an opportunity for the flesh" (Galatians 5:13).

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