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Deuteronomy 23:3 and Nehemiah 13:1 explicitly forbid Moabites from ever entering the assembly of YHWH, but the book of Ruth makes a Moabite woman the great-grandmother of King David — placing her, and her descendants, squarely inside the congregation.
People have answered this in several ways; GEBible presents them as equal peers.
Cited passages
An Ammonite or a Moabite shall not enter into Yahweh’s assembly; even to the tenth generation shall no one belonging to them enter into Yahweh’s assembly forever,
On that day they read in the book of Moses in the hearing of the people; and it was found written in it that an Ammonite and a Moabite should not enter into the assembly of God forever,
Cited passages
They took for themselves wives of the women of Moab. The name of the one was Orpah, and the name of the other was Ruth. They lived there about ten years.
So Boaz took Ruth and she became his wife; and he went in to her, and Yahweh enabled her to conceive, and she bore a son. The women said to Naomi, “Blessed be Yahweh, who has not left you today without a near kinsman. Let his name be famous in Israel. He shall be to you a restorer of life and sustain you in your old age; for your daughter-in-law, who loves you, who is better to you than seven sons, has given birth to him.” Naomi took the child, laid him in her bosom, and became nurse to him. The women, her neighbors, gave him a name, saying, “A son is born to Naomi”. They named him Obed. He is the father of Jesse, the father of David.
Examining the tension
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.
The Deuteronomic exclusion is categorical and permanent. Deuteronomy 23:3 (MT 23:4): "An Ammonite or Moabite shall not enter the assembly of YHWH; even to their tenth generation none belonging to them shall enter the assembly of YHWH forever (עַד־עוֹלָם, *ad-olam*)." The doubled "forever" with "tenth generation" closes the door beyond any generational accounting — the rabbis read "tenth generation" itself as idiomatic for perpetuity. The law's stated rationale (vv. 4-5) is the Moabite refusal of bread and water in the wilderness and the hiring of Balaam. Nehemiah 13:1-3, in the post-exilic period, reads this very passage publicly and applies it as scriptural warrant to separate "all the mixed multitude" from Israel — demonstrating that a later editorial community treated the Moabite ban as live, binding law.
Then Ruth. Ruth 1:4 introduces "Ruth the Moabitess"; she marries Boaz (Ruth 4:13), bears Obed, and the book closes with a genealogy making her the great-grandmother of David (Ruth 4:17, 22). Matthew 1:5 carries her into the line of Jesus. A Moabite woman is thus not merely admitted to the assembly but stands at the headwaters of the Davidic monarchy.
The harmonizations are several. The dominant rabbinic move (m. Yebamot 8:3; b. Yebamot 76b–77a) distinguishes *Moabi* (a male Moabite) from *Moabiyyah* (a female Moabite), restricting the ban to men: "an Ammonite but not an Ammonitess, a Moabite but not a Moabitess." Walter Kaiser and much evangelical literature adopt this. A second move appeals to Ruth's confession ("thy people shall be my people, and thy God my God," Ruth 1:16) as a functional conversion that naturalizes her. Daniel Block, in his NAC volume, reads the law as excluding Moabites *qua* Moabites while permitting full proselytes.
None holds well. The masculine-singular forms in Deuteronomy 23:3 are the standard collective idiom of Pentateuchal legislation; they nowhere else restrict a law to males — and Nehemiah 13:1-3 demonstrably applies the same text to expel foreign *wives*, treating women as covered. The male/female distinction is transparently *ex post facto* halakhah engineered to rescue Davidic (and messianic) legitimacy; the Talmud's own discussion frames it as resolving precisely the David problem. The conversion defense is anachronistic: the institutional category of the proselyte (*ger tsedek*) with a conversion rite is a later development, and Ruth undergoes no ritual the text describes — she is repeatedly called "the Moabitess" even after Obed's birth (Ruth 4:10).
The critical consensus is that Ruth is a literary counter-text. Tamara Cohn Eskenazi and Tikva Frymer-Kensky, Adele Berlin, and Kirsten Nielsen argue the novella was composed (or at least deployed) in deliberate tension with the exclusionary nationalism of Ezra-Nehemiah, whose program forced the dissolution of foreign marriages (Ezra 9-10; Neh 13). The book's repeated emphasis on Ruth's Moabite identity is not incidental but polemical: its thesis is that a Moabite *can* be incorporated and even mother the dynasty. On this reading the tension with Deuteronomy 23 is the point — an inner-biblical argument about who counts as Israel. Reading the canon as a single harmonious voice flattens what is in fact a debate between Israelite factions.
Where the critical reading lands: genuine contradiction, and likely a deliberate one on the part of Ruth's author.
Sources for this reading