Acts 13:39 Commentary: Justified by Christ, Not by Law

Paul is speaking in the synagogue of Pisidian Antioch, a city in the Roman province of Galatia. The audience includes Jews and Gentile “God-fearers”, people who attended synagogue and respected the God of Israel but had not fully converted. Paul’s address (Acts 13:16, 41) follows the typical synagogue pattern: a reading from the Law and the Prophets, then an invitation for any visiting teacher to offer a “word of exhortation.”

Paul recites Israel’s history from the exodus through the judges and kings, culminating in David and the promise of a Saviour from David’s line (v.23). He then announces that Jesus is that Saviour, crucified and raised from the dead. Verse 38 proclaims “remission of sins” through Jesus; verse 39 adds the sharp contrast with the law. For a first-century Jewish audience, the law was the centrepiece of covenant identity. To say that the law cannot justify was a radical claim, yet Paul’s argument echoes the Old Testament itself, especially Psalm 143:2 (“no man living is righteous” before God) and Habakkuk 2:4 (“the righteous will live by his faith”).

The phrase “from all things” (ἀπὸ πάντων, from all) is emphatic. In the law, some sins, especially those committed “with a high hand”, had no sacrificial provision and excluded the offender from the community (Numbers 15:30, 31). By contrast, Paul asserts that in Christ there is no sin so great that faith cannot receive forgiveness. This was good news to both Jews weighed down by the law’s demands and Gentiles who had no covenant remedies at all.

The Greek text of Acts 13:39 is stable across critical editions. No significant variants are noted in the supplied sources. The phrase “from all things from which you could not be justified by the law of Moses” appears uniformly in the manuscript tradition. The only minor variation involves the definite article before “law” (τοῦ νόμου, the law), it is present in the majority of manuscripts and undisputed in modern critical editions.

Acts 13:39 has been a key text in the church’s understanding of justification, especially during the Reformation. John Calvin, in his commentary on this verse, emphasises that Paul declares we are “justified by faith alone”, a claim he argues “the Papists” oppose. Lutheran and Reformed traditions have frequently cited the verse to contrast law and gospel. The 16th-century Geneva Bible notes summarize it simply: the law cannot justify, but Christ does. In the Wesleyan tradition, John Wesley used this verse to teach that justification is “the actual forgiveness of all sins at the very time of believing”, a position that shaped Methodist soteriology. Earlier, the verse was used by Augustine and the medieval scholastics to distinguish between the letter of the law and the grace of Christ, though not always with the same sharpness as later Reformation readings. Throughout church history, the verse has been a comfort to believers weighed down by the law’s demands, pointing them to Christ’s finished work.

Three-point outline

1. The law’s limitation: The law of Moses could not justify, not because it was flawed, but because people are. The law demands perfect obedience and provides no atonement for sin that is truly effective (Clarke, Barnes).
2. Christ’s provision: Through Jesus, everyone who believes is justified. Justification is a judicial declaration of righteousness, not an infusing of righteousness achieved by effort (Gill, Calvin).
3. Complete salvation: The phrase “from all things” is absolute. No sin falls outside the scope of Christ’s atoning work when received by faith. The gospel offers what the law never could, a complete, unqualified pardon.

Five-point outline

1. Justification defined: The word δικαιόω (dikaioō) means to declare righteous, to acquit. It is a legal term from the courtroom, God the judge pronounces the believing sinner not guilty.
2. The object of faith: Faith is directed toward “him”, Christ himself, not a system or a set of rules. The present participle πιστεύων (pisteuōn) indicates ongoing trust, not a one-time decision.
3. The passive voice of grace: δικαιοῦται (dikaioutai) is passive, justification is something done for us, not by us. We receive it; God accomplishes it.
4. The law’s purpose: The law was never meant to save. It reveals sin and points us to the need for a Saviour (Galatians 3:24).
5. The universal offer: “Everyone who believes”, no racial, moral, or ritual qualifications. This levels the ground for Jews and Gentiles alike (Acts 13:46, 47).

Illustration hooks

• A courtroom scene: the defendant stands guilty under the law with no way to pay the penalty. Then a substitute steps in, pays the fine, and the judge declares the defendant righteous. Believers are not simply pardoned; they are credited with Christ’s perfect obedience.
• A debt that grows every day: imagine trying to pay off a mortgage by working an hourly job. The law is like the contract that shows how much you owe but gives you no money to pay it. Grace in Christ is a benefactor who cancels the entire debt.
• A prescription that only diagnoses: the law is like a doctor’s test that reveals a fatal disease but supplies no medicine. The gospel provides the cure, Christ’s blood and righteousness.

Questions your congregation is asking

• Does this mean I don’t have to obey the Ten Commandments anymore?
• What about sins I committed before I believed? Are they truly all forgiven?
• How do I know I am really justified if I still struggle with sin and doubt?

This passage sits at a turning point in Paul’s first recorded missionary sermon. He has just shown how Israel’s history led to Jesus, and now he explains the personal consequences: forgiveness and justification are available through faith, not through the law. This discussion guide helps groups explore the contrast between what the law demands and what Christ provides.

Discussion questions

1. Read Acts 13:38, 39. What is the connection between “remission of sins” (v.38) and “justified” (v.39)? Are they the same thing, or does one go beyond the other?
2. The law of Moses included moral commandments, civil laws, and sacrificial rituals. Why does Paul say it could not justify? Use Psalm 143:2 and Habakkuk 2:4 to help answer.
3. What does it mean to be justified “from all things”? Is Paul saying that every kind of sin is covered, or only certain types? How does this affect the way you view your own past?
4. The Greek phrase “everyone who believes” uses a present participle (πιστεύων). Why might the present tense matter? Does it suggest a single moment of faith or a continuing trust?
5. Paul says the law could not justify. Does that mean the law is bad or useless? How would you explain the positive role of the law to someone who thinks Christians are against it?
6. In what practical ways do Christians today try to mix law and grace, adding conditions to the free gift of justification? How does this verse correct that?
7. If justification is a declaration God makes, not a feeling we have, how can we grow in confidence that we really are justified? What assurances does the Bible give us?