Leviticus 20:12 Commentary: Perversion (tevel) and Its Penalty

This verse belongs to a legal collection often called the Holiness Code (Leviticus 17, 26), which stresses that Israel must reflect God’s holy character in every area of life. The chapter begins with a statement that Yahweh is the one who sanctifies His people (v. 8), and then lists sexual offenses with their corresponding punishments. Each case follows a pattern: a prohibition from Leviticus 18 is now given a specific civil penalty.

The relationship between a man and his daughter-in-law (kallah, H3618) was considered incest because she was his son’s wife, making her a member of his extended household. The term can also mean “bride,” but here the context of the family line is clear. Genesis 38 offers a famous example: Judah unknowingly slept with Tamar, his daughter-in-law, and the text treats it as a scandal. Under the Mosaic law, what happened in ignorance was now explicitly forbidden and carried the death penalty.

Gill cites the Targum of Jonathan in saying the execution was by stoning, the standard method for capital sexual crimes in ancient Israel. Keil and Delitzsch add that in cases like verse 14 the corpse was burned afterward as a heightened mark of shame. The phrase “their blood shall be upon them” is a legal idiom: the criminals are fully guilty, and the community does not incur bloodguilt by carrying out the sentence. The law served to protect the integrity of the family unit, which was the foundation of Israel’s social and religious identity.

The supplied commentaries and translations note no significant textual variants in Leviticus 20:12. The Hebrew text is stable across manuscripts. The main variation is in English translations: some render tevel as “confusion” (KJV, ASV, YLT), while others use “perversion” (WEB, BSB) or “heinous crime” (Douay-Rheims). These choices reflect the translator’s judgment on the best English equivalent, not a difference in the underlying Hebrew.

In Jewish tradition, this verse was understood as a capital offense requiring stoning (Gill cites the Targum of Jonathan). The Mishnah (Sanhedrin 7:4) lists it among those executed by stoning. Early Christian writers like Augustine saw the prohibition as an extension of natural law: a man must not uncover the nakedness of his son’s wife because she has become one flesh with his son (see Genesis 2:24). Medieval Jewish commentators such as Rashi and Ibn Ezra focused on the word tevel as a mixture of genealogical lines. The verse has been invoked by Christian moral teachers to argue against incest in all forms, while the civil penalty has been set aside since the end of the theocratic state. In modern discussions, the verse is often cited to show the high value Scripture places on family integrity and the protection of vulnerable members within the household.

Three-point outline

1. God draws clear boundaries around the family. The relationship between a man and his daughter-in-law is a defined boundary that must not be crossed. This is not arbitrary rule-making; it protects the structure God created for human flourishing.
2. Sexual sin within the family is a form of “confusion.” Wesley notes that it “perverts the order which God hath appointed.” Tevel means mixing what should stay separate, creating chaos in the very place meant for safety and nurture.
3. Holiness demands accountability. The death penalty shows that such violations were not private matters. They threatened the whole community’s relationship with a holy God and required decisive action to remove the corruption.

Five-point outline

1. The pattern in Leviticus 20: Prohibitions from Leviticus 18 are repeated with civil penalties. This verse mirrors Leviticus 18:15 but adds the punishment.
2. The meaning of “confusion” (tevel): The word appears only in contexts of sexual perversion (Leviticus 18:23). It denotes a violation of the natural created order.
3. Both parties held responsible: “Both of them shall surely be put to death” means the woman is not treated as a passive victim but as a willing participant, reflecting ancient legal assumptions about consent and responsibility.
4. The method of execution: Keil and Delitzsch argue the punishment was stoning, with burning of the corpse in aggravated cases. This shows the sin was seen as a capital crime, not merely a personal failing.
5. “Their blood shall be upon them”: A formula that declares the guilty bear full responsibility. The community executes justice without incurring guilt themselves.

Illustration hooks

• The betrayal of trust when a family member crosses sexual boundaries. Think of the shock and disorientation that follows such a discovery, that is the “confusion” the word tevel describes.
• A house built with rotten beams: the whole structure is at risk. When the family unit is corrupted by incest, the stability of the entire community is threatened.
• Judah and Tamar (Genesis 38). Judah himself later admits “She is more righteous than I,” but under Moses’ law both would be executed. The story shows how seriously God views this boundary even before the Law codified it.

Questions your congregation is asking

• Why is sex with a daughter-in-law treated as a capital crime, while other sins are not?
• Does this verse apply today, or was it only for ancient Israel?
• How do we protect family boundaries without falling into legalism or ignoring real abuse?

Leviticus 20:12 is a difficult verse for modern readers. It confronts us with a world where sexual sin within the family carried the death penalty. But beneath the shock lies a deep concern for order, holiness, and the protection of relationships. As you discuss this passage, focus on what it reveals about God’s character and His design for the family, then consider how those principles apply in a world where the civil penalty is no longer enforced.

Discussion questions

1. Read Leviticus 20:12 aloud. What is the offense described, and who is held accountable?
2. The Hebrew word tevel is translated “confusion” or “perversion.” Wesley says it refers to “perverting the order which God hath appointed.” In your own words, what makes this act a form of confusion?
3. How does the surrounding context (verses 9, 11, 13, 16) help you understand why the death penalty was prescribed for these offenses?
4. Genesis 38 records Judah and Tamar. How does that story help us see that this sin was already considered a serious violation, even before the Law?
5. Christians disagree about whether the civil penalties of the Old Testament apply today. What principles from this passage still hold for the church? What has changed with the coming of Christ?
6. How can families today establish healthy boundaries that protect against sexual sin, without becoming fearful or legalistic?
7. This passage emphasizes that the guilty bear their own blood. How does the gospel of Jesus Christ speak to both the seriousness of sin and the offer of forgiveness for sinners?