How should a man who has sex with a menstruating woman be punished?

What follows is one scholar’s way of reading this disagreement — a critical-historical view that often concludes the texts genuinely disagree. It draws on the peer-reviewed sources listed below and stands as one position among the answers above, presented for transparency, not as GEBible’s position.

How critical scholarship weighs this: Widely regarded as a genuine contradiction

This summarizes where critical scholarship tends to land on this tension — a report on the field’s center of gravity, not GEBible’s own ruling.

This is a clean contradiction internal to the book of Leviticus, and the harmonizations must do real interpretive work to dissolve it. Leviticus 15:24, within the Priestly purity instructions on genital discharges, treats intercourse with a menstruant as a contracted impurity with a fixed, low-grade consequence: "if any man lie with her at all, and her flowers be upon him, he shall be unclean seven days." No excision, no death — the man simply incurs a week's ritual impurity, resolved by the passage of time. Leviticus 20:18, within the Holiness Code's catalogue of sexual offenses, escalates dramatically: "if a man shall lie with a woman having her sickness, and shall uncover her nakedness... both of them shall be cut off (we-nikretû, the karet penalty) from among their people." The same act draws a seven-day impurity in one chapter and divine excision in another.

The standard apologetic harmonization, advanced by Gleason Archer and by R. K. Harrison's Tyndale *Leviticus*, distinguishes the two as different scenarios: Leviticus 15:24 covers inadvertent contact (the man did not know, or the period began unexpectedly during intercourse), while 20:18 covers the deliberate act, signaled by the verb galah ("to uncover") and the phrase "he hath discovered her fountain," taken to imply willful exposure. The distinction is not invented from nothing — early rabbinic interpretation faced the same tension. The Mishnah lists intercourse with a niddah among the karet offenses (cf. Keritot 1:1), and the rabbinic tradition develops the inadvertent/intentional distinction within the framework of sin-offering versus karet liability, which Jacob Milgrom notes in his Anchor Bible *Leviticus 17-22*. So the harmonizing move has a long pedigree.

What the distinction cannot overcome is the source-critical evidence that Leviticus 15 and Leviticus 20 belong to different layers of the Priestly material. Leviticus 15 is part of the older Priestly purity code (P), which handles menstrual contact as a matter of ritual impurity managed by waiting periods and washing — a contamination, not a crime. Leviticus 20 belongs to the Holiness Code (H), which Israel Knohl (*The Sanctuary of Silence*) and Jacob Milgrom argue is a later stratum that systematically re-frames Priestly purity matters as moral-covenantal violations bearing the severe sanctions of karet or death. Knohl's specific thesis is that H takes P's ritual categories and re-reads them as offenses against the holiness of the land and people. On this analysis the two texts are not addressing "different scenarios" at all; they are two legal traditions legislating the same scenario, with H escalating P's penalty. Decisively, the harmonizing distinction has no textual anchor in 15:24 itself: nothing in that verse signals inadvertence, surprise, or lack of intent. The word "inadvertent" must be supplied to save the consistency. The galah/"discovered her fountain" language of 20:18 is the ordinary idiom for sexual relations throughout Leviticus 18 and 20, not a special marker of premeditation absent in chapter 15.

The rabbinic resolution thus performs precisely the harmonizing function Knohl identifies as covering the seam between the two strata — a coherent later systematization, but one that presupposes the unity it sets out to demonstrate.

Where the critical reading lands: genuine contradiction within Leviticus, partially resolvable if one stipulates an inadvertent/willful distinction the text does not state, and most economically explained by the Holiness Code's redactional escalation of the older Priestly purity rule.