Will God destroy those that intermarry?

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: Genuinely disputed among scholars

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.

Deuteronomy 7:1-4 commands Israel, on entering Canaan, to make no marriages with the seven named nations (Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites, Jebusites), warning that such unions will turn the next generation to other gods and that "the anger of the LORD" will then "destroy thee suddenly." Genesis 46:20 records, without a flicker of disapproval, that Joseph married Asenath, daughter of Potiphera, priest of On — that is, the daughter of a senior cultic official of the Egyptian sun-god Re at Heliopolis (Egyptian Iunu, Greek Heliopolis). From this thoroughly pagan-priestly union descended Ephraim and Manasseh, two of the eponymous tribes of Israel. The blessing is unqualified, and the text shows no anxiety whatever about the religious affiliation of Asenath's father.

The apologetic narrowing, advanced by Walter Kaiser and Gleason Archer, observes correctly that Deuteronomy 7 names a specific Canaanite list and that Egyptians are not on it; Joseph's marriage therefore falls outside the statute's literal scope. Deuteronomy 23:7-8 even instructs Israel not to abhor the Egyptian, since Israel had been a sojourner in Egypt, and permits the third generation of Egyptian descent to enter the assembly. As far as the bare letter of Deuteronomy 7 goes, this is a fair reading: the prohibition is geographically and ethnically targeted at the peoples whose land Israel was to dispossess, and its stated rationale is cultic contamination from those particular cults ("for they will turn away thy son from following me"). The law is not framed as a blanket eugenic or ethnic rule; it is a covenantal firewall against the specific idolatries of the land to be conquered.

The difficulty is twofold. First, the principle did not stay narrow. Ezra 9-10 and Nehemiah 13 explicitly invoke the Deuteronomic prohibition — Ezra 9:1-2 stitches together the seven-nations language (and adds Ammonites, Moabites, Egyptians) with the post-exilic situation — and apply it to virtually any marriage with surrounding non-Israelites, forcing the dissolution of mixed marriages as a defilement of the "holy seed" (zeraʿ ha-qodesh, Ezra 9:2). By the Second Temple period the inner-biblical trajectory had universalized the ban that Deuteronomy 7 framed narrowly, and it did so by reading the Pentateuchal material as a general principle. Second, the wider canon is openly inconsistent on the merits. Moses marries Zipporah the Midianite (Exodus 2:21); Numbers 12:1 records that Miriam and Aaron objected to "the Cushite woman whom he had married," though whether this Cushite woman is to be identified with Zipporah (on the basis of the Cushan/Midian overlap in Habakkuk 3:7) or denotes a distinct second wife is genuinely disputed among interpreters and cannot be cited as a settled second intermarriage. Boaz marries Ruth the Moabite (Ruth 1:4; 4:13), even though Deuteronomy 23:3 bars Moabites from the assembly to the tenth generation, and the narrative crowns that union by making Ruth the great-grandmother of David (Ruth 4:17-22). These cases are not on the Deuteronomy 7 list, but they show a narrative tradition entirely comfortable with foreign wives among Israel's heroes.

Christine Hayes and Shaye Cohen have traced how intermarriage ideology hardened over time: the older J and E narratives are untroubled by the foreign wives of patriarchs and heroes, while the Deuteronomic and Priestly streams, and then Ezra-Nehemiah, grow steadily more anxious about genealogical purity, eventually framing it in terms of holy seed and impurity. Joseph Blenkinsopp's commentary on Ezra-Nehemiah shows how the post-exilic leadership read the older legislation as warrant for a far more sweeping policy than its letter required.

This is the decisive point for harmonization. The conflict is not a single author contradicting himself within one composition; it is a diachronic clash between theological generations whose ethics of intermarriage differed and whose texts were subsequently bound into one canon. The Joseph-Asenath notice is a patriarchal-era datum that the later editors who shaped Deuteronomy and Ezra-Nehemiah preserved without harmonizing. The Kaiser-Archer defense neutralizes the legal charge (Egyptians are not in the Deuteronomy 7 list, and Deut 23:7-8 explicitly exempts them) but leaves intact the broader ethical tension, since the canon elsewhere reads the prohibition as a general principle and yet celebrates precisely the kinds of unions that principle would condemn. The narrow reading rescues the letter at the cost of the spirit the canon itself later asserts.

Where the critical reading lands: partially harmonizable on the strict letter of Deuteronomy 7, but a genuine diachronic tension once the canon generalizes the ban while simultaneously honoring foreign marriages.