St. Paul says "by works of the law no one will be justified" (Galatians 2:16). Does that mean "God doesn't care what you do," or "you don't need Jewish rituals"?
Short answer: "Works of the law" are the deeds required by the Law of Moses, the covenant given at Sinai. The flashpoints were circumcision, food laws and holy days, but St. Paul's point reaches the whole Law: it shows what is right without giving the grace to do it. St. Paul never uses the phrase for the good works God does in us after we believe.
Key verses on works of the law
- "a person is not justified by works of the law but through faith in Jesus Christ" (Galatians 2:16)
- "For we consider that a person is justified by faith apart from works of the law." (Romans 3:28)
- "Does God belong to Jews alone? Does he not belong to Gentiles, too?" (Romans 3:29)
- "Circumcision means nothing, and uncircumcision means nothing; what matters is keeping God's commandments." (1 Corinthians 7:19)
- "created in Christ Jesus for the good works that God has prepared in advance" (Ephesians 2:10)
Scripture quotations are from the New American Bible, Revised Edition (NABRE), © 2010, 1991, 1986, 1970 Confraternity of Christian Doctrine, Washington, D.C. Used by permission. All rights reserved.
What Catholics Actually Teach
The Church honors the Law of Moses as God's gift: "According to Christian tradition, the Law is holy, spiritual, and good, yet still imperfect." Like a tutor, "it shows what must be done, but does not of itself give the strength, the grace of the Spirit, to fulfill it" (CCC 1963). That is why no one is justified by it.
The New Law of Christ is "a law of grace, because it confers the strength of grace to act, by means of faith and the sacraments," and it "sets us free from the ritual and juridical observances of the Old Law" (CCC 1972).
Justification itself is a gift: "no one can merit the initial grace of forgiveness and justification, at the beginning of conversion" (CCC 2010).
What Catholics do not teach:
- That "works of the law" means only rituals, so moral effort can earn salvation. No work done without grace justifies anyone (CCC 2010).
- That Christians must keep the Mosaic ceremonies. The apostles settled that at the Council of Jerusalem (Acts 15).
- That good works done in Christ are "works of the law." They are God's grace at work in us: God "works in you both to desire and to work" (Philippians 2:13).
The Biblical Case
1. The phrase lives in a Jew-Gentile argument
St. Paul uses the phrase only in Galatians and Romans, letters shaped by one dispute: must Gentiles become Jews? In Antioch, St. Peter "used to eat with the Gentiles" but then "separated himself, because he was afraid of the circumcised" (Galatians 2:12). St. Paul asked him, "how can you compel the Gentiles to live like Jews?" (Galatians 2:14). Then: "not justified by works of the law."
Romans follows the same pattern: right after "apart from works of the law," St. Paul asks, "Does God belong to Jews alone?" (Romans 3:28–29). The background is the demand to "circumcise them and direct them to observe the Mosaic law" (Acts 15:5).
2. Circumcision, food and holy days were the flashpoints
St. Paul warns, "if you have yourselves circumcised, Christ will be of no benefit to you," because such a man "is bound to observe the entire law" (Galatians 5:2–3). He rebukes the calendar too: "You are observing days, months, seasons, and years" (Galatians 4:10).
These marks set Israel apart, but they never made anyone righteous. Abraham "received the sign of circumcision as a seal on the righteousness received through faith while he was uncircumcised" (Romans 4:11).
3. But the whole Law is in view, moral commands included
"No human being will be justified in his sight by observing the law; for through the law comes consciousness of sin" (Romans 3:20). (The NABRE renders the same Greek phrase here as "observing the law.") St. Paul's example is moral: "I did not know what it is to covet except that the law said, 'You shall not covet'" (Romans 7:7).
The Law is not the problem: "the law is holy, and the commandment is holy and righteous and good" (Romans 7:12). The problem is that it cannot give life: "if a law had been given that could bring life, then righteousness would in reality come from the law" (Galatians 3:21). "What the law, weakened by the flesh, was powerless to do, this God has done" (Romans 8:3).
4. St. Paul still demands obedience
If "works of the law" meant all obedience, St. Paul would contradict himself: "Circumcision means nothing, and uncircumcision means nothing; what matters is keeping God's commandments" (1 Corinthians 7:19). God gives "eternal life to those who seek glory, honor, and immortality through perseverance in good works" (Romans 2:6–7).
Christ came "so that the righteous decree of the law might be fulfilled in us, who live not according to the flesh but according to the spirit" (Romans 8:4).
5. Grace first, then good works
St. Paul puts both truths side by side: "For by grace you have been saved through faith... it is not from works, so no one may boast. For we are his handiwork, created in Christ Jesus for the good works that God has prepared in advance" (Ephesians 2:8–10). Works before grace cannot save. Works from grace are what grace produces.
Objections Answered
(a) "'Works of the law' means any human effort to earn God's favor."
At its strongest: This is the classic Reformation reading: "A worker's wage is credited not as a gift, but as something due. But when one does not work, yet believes in the one who justifies the ungodly, his faith is credited as righteousness" (Romans 4:4–5). Ephesians 2:9 says simply "not from works," and the Letter to Titus says God saved us "not because of any righteous deeds we had done" (Titus 3:5).
Answer: Catholics agree with the heart of this: no one earns justification (CCC 2010). But these texts describe works offered as wages, "something due," apart from grace, not what God does in us afterward. Ephesians 2:10 follows 2:9 immediately. A gift cannot be bought, but the gift is meant to work.
(b) "'Works of the law' means only Jewish boundary markers, so Paul isn't talking about earning at all."
At its strongest: Scholars of the "New Perspective on Paul" point out that the phrase appears only in Jew-Gentile disputes, where circumcision, food and Sabbath were the issues (Galatians 2:12–16; Romans 3:29). St. Paul's target, on this view, is ethnic pride, not moral effort.
Answer: The context is real. But St. Paul's reasoning goes deeper than ethnic badges. The Law brings "consciousness of sin" (Romans 3:20), shown by "You shall not covet" (Romans 7:7), and no law "could bring life" (Galatians 3:21). Both truths stand: Gentiles need not become Jews, and no one, Jew or Gentile, is justified by keeping a law without grace. And neither reading touches the Catholic position, because the same letter insists that "those who observe the law will be justified" (Romans 2:13) and that true circumcision "is of the heart, in the spirit, not the letter" (Romans 2:29). The Spirit writes the Law on the heart. That is grace at work, not a wage.
(c) "Then Mass, confession and fasting are 'works of the law' too."
At its strongest: St. Paul says, "Let no one, then, pass judgment on you in matters of food and drink or with regard to a festival or new moon or sabbath" (Colossians 2:16).
Answer: St. Paul calls those Mosaic observances "shadows of things to come; the reality belongs to Christ" (Colossians 2:17). The Eucharist is not a Mosaic rite but that reality, commanded by Christ: "do this in memory of me" (Luke 22:19). Through the sacraments He gives "the strength of grace to act" (CCC 1972).
The Early Church Agrees
From the start, the Fathers read "works of the law" as the Mosaic covenant, and they read St. Paul's point as reaching the moral law too: law without grace cannot justify.
- St. Ignatius of Antioch (Letter to the Magnesians, c. AD 107), writing to Christians tempted to keep the Mosaic observances: "For if we still live according to the Jewish law, we acknowledge that we have not received grace" (ch. 8). And: "It is absurd to profess Christ Jesus, and to Judaize" (ch. 10).
- St. Justin Martyr (Dialogue with Trypho, c. AD 155–160), against a Jewish opponent: "For when Abraham himself was in uncircumcision, he was justified and blessed by reason of the faith," and he received "circumcision for a sign, and not for righteousness" (ch. 23).
- St. Irenaeus of Lyons (Against Heresies, c. AD 180) saw that the Law's signs never justified anyone: "Abraham himself, without circumcision and without observance of Sabbaths, 'believed God, and it was imputed unto him for righteousness'" (4.16.2). Yet the Ten Commandments, he adds, "remain permanently with us" (4.16.4).
- St. Augustine of Hippo (On the Spirit and the Letter, AD 412) refused to limit Romans 3:20 to ceremonies like circumcision. He notes that St. Paul "immediately adds what law he meant, and says, 'For by the law is the knowledge of sin,'" the law that says "You shall not covet" (ch. 14). His summary: "by the law of works, God says to us, Do what I command you; but by the law of faith we say to God, Give me what You command" (ch. 22).
Conclusion
"Works of the law" is not St. Paul's word against obedience. It is his word against standing before God on the Law of Moses, in our own strength. The answer is grace, received by faith, bearing fruit in love.
If you're Protestant, you already believe salvation is God's gift. We invite you to read "works of the law" alongside "keeping God's commandments" and see one gospel. For how this fits with St. James, see Does James 2 Contradict Paul?
Come home. The grace that fulfills the Law in us, given through faith and the sacraments, is offered in its fullness in the Catholic Church. Christ did not found many churches. He founded one, on St. Peter and the apostles (Matthew 16:18), and that Church is the Catholic Church. "It is through Christ's Catholic Church alone, which is the universal help toward salvation, that the fullness of the means of salvation can be obtained" (CCC 816). If you are a baptized Christian, you already share "a certain, although imperfect, communion" with her (CCC 838). Every truth you already hold is a call to the rest of the way. Christ is calling you into the Catholic Church.
Your next step: Come to Mass this Sunday at your local Catholic church. You can find one near you at MassTimes.org. Everyone is welcome; if you're not yet Catholic, pray with us but don't receive Communion yet. When you're ready to become Catholic, call the parish office and ask about OCIA, the Order of Christian Initiation of Adults. They will walk you through every step. Read our guide: How Do I Become Catholic? Not ready yet? Get our free pocket guide below and keep learning.
FAQ
Does "works of the law" mean good works? No. It means deeds required by the Law of Moses. St. Paul praises good works done in Christ (Ephesians 2:10).
Do Christians have to keep the Old Testament law? Not its ceremonial observances (Acts 15; Colossians 2:16–17). Its moral heart is fulfilled by love (Romans 13:10).
Do Catholics think we can earn salvation? No (CCC 2010). See Is Salvation by Faith Alone?
Sources
Scripture (NABRE, bible.usccb.org): Matthew 16:18; Acts 15:1–5; Luke 22:19; Romans 2:6–7, 13, 29; Romans 3:20, 28–29; Romans 4:4–5, 11; Romans 7:7, 12; Romans 8:3–4; Romans 13:10; 1 Corinthians 7:19; Galatians 2:12–16; Galatians 3:21; Galatians 4:10; Galatians 5:2–3; Ephesians 2:8–10; Philippians 2:13; Colossians 2:16–17; Titus 3:5.
Catechism of the Catholic Church (vatican.va): 816, 838; 1963; 1972; 2010.
Church Fathers (newadvent.org): Ignatius of Antioch, Letter to the Magnesians 8, 10 (ANF vol. 1); Justin Martyr, Dialogue with Trypho 23 (ANF vol. 1); Irenaeus, Against Heresies 4.16.2, 4.16.4 (ANF vol. 1); Augustine, On the Spirit and the Letter 14, 22 (NPNF1 vol. 5).