Hebrews 10:4 Commentary: Why Animal Blood Cannot Take Away Sin

The verse sits in a sustained argument about the insufficiency of the Levitical system. Hebrews 10:1, 4 describes the law as “a shadow of the good things to come,” not the real thing. Year after year the same sacrifices were offered, yet the worshippers were never “made perfect”, they still had consciousness of sin. In fact, the yearly repetition actually reminded them of their sins rather than removing them. This is the immediate reason for the statement in verse 4: the sacrifices could not do what the worshippers needed.

The specific animals, bulls and goats, point to the most solemn day of the Jewish calendar, the Day of Atonement (Yom Kippur). On that day the high priest offered a bull for his own sins and a goat for the sins of the people (Leviticus 16). It was the climax of the sacrificial system. If any animal sacrifice could have removed sin, this would have been the one. Yet even this yearly ritual left the conscience untouched.

More broadly, the Old Testament prophets had long raised the same question. God told Israel through Isaiah, “I don’t delight in the blood of bulls, or of lambs, or of male goats” (Isaiah 1:11). Through Hosea he said he desired “mercy, and not sacrifice” (Hosea 6:6, a verse Jesus quoted). The worshipers who took the system seriously already sensed that something deeper was needed. The writer of Hebrews, working from Psalm 40:6, 8 (quoted in the next verses), shows that the sacrificial system was never designed to be the final answer. It was a pointer, a temporary arrangement that prepared God’s people for the real sacrifice to come.

This historical setting makes the verse a hinge: it closes the argument about the old covenant’s limitations and opens the door for Christ’s perfect offering.

The consulted sources note no significant textual variants for Hebrews 10:4. The reading is stable across the major Greek manuscripts.

Early church writers such as John Chrysostom and Theodoret used Hebrews 10:4 to show that the Mosaic law was a pedagogue leading to Christ. In the Reformation, Luther and Calvin drew on the verse to argue that ritual observance could not justify the sinner; Calvin’s commentary grounds the insufficiency of animal blood in the nature of sin itself. The verse has been central in almost every Christian tradition’s teaching on atonement, cited by believers from Catholic sacramental theology to evangelical Protestant sermons. It has also been used in debates against the continuation of animal sacrifices (such as in some cults) and against any view that treats the Eucharist as a repetition of Christ’s sacrifice rather than a memorial of his once-for-all offering. Across centuries, Hebrews 10:4 has consistently reminded the church that only Jesus can remove sin.

Three-point outline

1. The limit of the old system. Animal sacrifices could not take away sin, not their fault, not God’s failure. They were never meant to do that. The verb ἀφαιρεῖν (“to take away” or “remove”) suggests a complete removal, like cutting something off. The blood of bulls and goats could not cut sin away from the conscience.
2. The purpose of repetition. The yearly sacrifice did not erase sin; it exposed it. Each return of the Day of Atonement reminded the worshiper that sin was still there, still needing to be dealt with. The law functioned as a mirror, not a solution.
3. The necessity of Christ. If animal blood could remove sin, Christ would not have needed to come. The impossibility in verse 4 sets up the divine necessity in verse 9: “He takes away the first, that he may establish the second.”

Five-point outline

1. Animal sacrifices were powerless to remove sin (the plain statement of v.4).
2. They reminded worshippers of sin rather than cleansing them (v.3).
3. They could not reach the conscience or satisfy divine justice (Barnes, Gill).
4. They pointed forward to the one sacrifice that could, Christ’s own body and blood (vv.5, 10).
5. Therefore, believers have confidence to enter the holy place through Christ (v.19).

Illustration hooks

• Stain that won’t come out. You scrub a stain with soap and water. It fades a little, but it’s still there. The more you scrub, the more you remember it’s there. That is what the old sacrifices were like, they didn’t remove the stain; they highlighted it.
• Counterfeit bill. Imagine someone owes a debt and tries to pay with play money. The currency looks official, but it has no backing. Animal blood was like play money, it looked like a payment for sin, but it could never clear the debt.
• Prescription that treats symptoms. A medicine might relieve a cough without curing the infection. The sacrifices treated the ceremonial symptoms of sin, but they could not heal the disease of the soul.

Questions your congregation is asking

• “If the Old Testament sacrifices couldn’t forgive sin, why did God command them in the first place?”
• “How do I know Christ’s sacrifice is enough for my sin?”
• “Does this mean the old covenant was a mistake?”

This verse stops us short. God commanded animal sacrifices, yet here we are told they were impossible to take away sin. Why did he set up a system that could not complete the job? The answer leads us directly to Jesus. As you discuss, pay attention to the force of the word “impossible” (ἀδύνατον) and how the writer of Hebrews builds his case from the Old Testament itself.

Discussion questions

1. Read Hebrews 10:1, 4. What is the writer’s argument? How does verse 4 function as a conclusion to the thoughts in verses 1, 3?
2. What does the word “impossible” (ἀδύνατον) tell us about the nature of sin? About the limitations of the law?
3. Why does the writer specifically mention “bulls and goats”? What day of the Jewish calendar do those animals call to mind?
4. How do the Old Testament passages quoted in the cross-references (Isaiah 1:11, Psalm 51:16) say the same thing as Hebrews 10:4? What does this show about God’s priorities?
5. If animal sacrifices could not take away sin, what did they accomplish? What positive role did they play in God’s plan?
6. In what ways do people today still try to “offer the blood of bulls and goats”, that is, use religious activities to deal with guilt instead of trusting Christ?
7. How does this verse deepen your appreciation for the sacrifice of Jesus? What does it mean to you personally that he did what the animals could not?