Deuteronomy 23:3 bars Moabites from the assembly of Yahweh to the tenth generation, and Ezra 9-10 commands the forced divorce of foreign wives including Moabites. The book of Ruth celebrates the marriage of Boaz to the Moabite Ruth as the source of the Davidic line. The legal/post-exilic tradition forbids Moabite intermarriage; the Ruth tradition presents it as the conduit of messianic descent.
Proposed answers
People have answered this in several ways; GEBible presents them as equal peers.
13So 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.14The women said to Naomi, “Blessed be Yahweh, who has not left you today without a near kinsman. Let his name be famous in Israel.15He 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.”16Naomi took the child, laid him in her bosom, and became nurse to him.17The 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.
1Now when these things were done, the princes came near to me, saying, “The people of Israel, the priests, and the Levites, have not separated themselves from the peoples of the lands, following their abominations, even those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites.2For they have taken of their daughters for themselves and for their sons, so that the holy offspring have mixed themselves with the peoples of the lands. Yes, the hand of the princes and rulers has been chief in this trespass.”3When I heard this thing, I tore my garment and my robe, and pulled the hair out of my head and of my beard, and sat down confounded.
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 tension here is one of the clearest cases in the Hebrew Bible of a deliberate internal disagreement, and it turns on the place of Moab in Israel's marriage law. Ruth 4 closes with a genealogy that runs Boaz–Obed–Jesse–David, making the Davidic dynasty descend through Ruth, repeatedly named 'the Moabitess' (הַמּוֹאֲבִיָּה). The narrator offers no apology; the foreign marriage is the providential conduit of the royal line. Against this, Ezra 9 has Ezra tear his garment and pull out his hair on learning that returnees have married 'the peoples of the lands,' the Moabites among them, and Ezra 10 enforces the mass dismissal of these foreign wives and their children. Ezra's stated legal warrant draws on Deuteronomy 23:3-6, 'an Ammonite or Moabite shall not enter the assembly of YHWH … even to the tenth generation' — and Nehemiah 13:1-3 cites the same Deuteronomic text to expel those of foreign descent.
The critical reading takes the two works as products of a live Second Temple debate. On linguistic and ideological grounds many scholars — Campbell in the Anchor Bible Ruth, Eskenazi and Frymer-Kensky in the JPS commentary — date the composition of Ruth to the post-exilic period and read it as a pointed counter-narrative to the Ezra-Nehemiah purity program. The book is set 'in the days when the judges judged' but speaks to the fifth-century question of ethnic boundaries: it answers the policy of expulsion with a story in which Israel's greatest king owes his existence to a Moabite woman of exemplary loyalty. Whether or not one accepts a strict polemical intent, Ruth and Ezra-Nehemiah plainly represent opposing valuations of Moabite intermarriage, and the canon, by including both, declines to adjudicate between them — much as it preserves the welcoming universalism of Isaiah 56:3-7 alongside the exclusion of Deuteronomy 23.
The harmonizing tradition, represented by Block's NAC and the IVP Bible Background Commentary, runs in two main directions. First, the gender argument: Deuteronomy 23:3 uses the masculine form מוֹאָבִי (moʾavi), so the bar applies only to Moabite men, not women — a reading the Mishnah develops explicitly (m. Yevamot 8:3, 'an Ammonite and a Moabite are forbidden … but their women are permitted') precisely to legitimate David's ancestry. Second, the conversion argument: Ruth's confession, 'your people shall be my people, and your God my God' (Ruth 1:16), incorporates her into Israel and dissolves her Moabite status. Both are coherent and were taken seriously within the tradition; the gender reading in particular has real grammatical purchase, since Hebrew gentilics are gendered.
Neither move, however, holds against the texts in tension. The masculine-only distinction is not stated in Deuteronomy 23; it is a rabbinic inference framed centuries later for the express purpose of protecting David's line, and Ezra's own program does not honor it — Ezra 9-10 targets the foreign wives, the women, specifically. The conversion argument fails on the narrative's own insistence: Ruth is still 'Ruth the Moabitess' in 2:2, 2:21, and even in 4:10, where Boaz publicly acquires 'Ruth the Moabitess … to be my wife' before the elders. The book will not let her ethnic identity dissolve; that retention is part of the point. The most economical reading is that Israelite and early Jewish opinion on intermarriage with Moabites was genuinely divided across the biblical period — inclusive in Ruth and Isaiah 56, exclusionary in Deuteronomy 23 and Ezra-Nehemiah — and that the canon preserves both poles without harmonizing them. The later gender and conversion arguments are best understood not as the texts' own resolution but as downstream attempts to reconcile a tension the tradition itself felt acutely.
Where the critical reading lands: a genuine, and very likely deliberate, intra-canonical contradiction.
Sources for this reading
Edward F. Campbell, Ruth: A New Translation with Introduction, Notes, and Commentary (AB 7; Doubleday, 1975) pp. 27-36, 159-173on Ruth 4:13-17Ruth 4:13-17
Tamara Cohn Eskenazi and Tikva Frymer-Kensky, Ruth (JPS Bible Commentary; Jewish Publication Society, 2011) pp. xv-xliv
H. G. M. Williamson, Ezra, Nehemiah (WBC 16; Word, 1985) pp. 127-159on Ezra 9-10Ezra 9-10
Jeffrey H. Tigay, Deuteronomy (JPS Torah Commentary; Jewish Publication Society, 1996) pp. 209-212on Deuteronomy 23:4-7Deuteronomy 23:4-7
Daniel I. Block, Judges, Ruth (NAC 6; B&H, 1999) pp. 605-733on Ruth, representative harmonization
John H. Walton, Victor H. Matthews, and Mark W. Chavalas, The IVP Bible Background Commentary: Old Testament (InterVarsity Press, 2000) pp. 277-287on Ruth, representative harmonization
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 tension here is one of the clearest cases in the Hebrew Bible of a deliberate internal disagreement, and it turns on the place of Moab in Israel's marriage law. Ruth 4 closes with a genealogy that runs Boaz–Obed–Jesse–David, making the Davidic dynasty descend through Ruth, repeatedly named 'the Moabitess' (הַמּוֹאֲבִיָּה). The narrator offers no apology; the foreign marriage is the providential conduit of the royal line. Against this, Ezra 9 has Ezra tear his garment and pull out his hair on learning that returnees have married 'the peoples of the lands,' the Moabites among them, and Ezra 10 enforces the mass dismissal of these foreign wives and their children. Ezra's stated legal warrant draws on Deuteronomy 23:3-6, 'an Ammonite or Moabite shall not enter the assembly of YHWH … even to the tenth generation' — and Nehemiah 13:1-3 cites the same Deuteronomic text to expel those of foreign descent.
The critical reading takes the two works as products of a live Second Temple debate. On linguistic and ideological grounds many scholars — Campbell in the Anchor Bible Ruth, Eskenazi and Frymer-Kensky in the JPS commentary — date the composition of Ruth to the post-exilic period and read it as a pointed counter-narrative to the Ezra-Nehemiah purity program. The book is set 'in the days when the judges judged' but speaks to the fifth-century question of ethnic boundaries: it answers the policy of expulsion with a story in which Israel's greatest king owes his existence to a Moabite woman of exemplary loyalty. Whether or not one accepts a strict polemical intent, Ruth and Ezra-Nehemiah plainly represent opposing valuations of Moabite intermarriage, and the canon, by including both, declines to adjudicate between them — much as it preserves the welcoming universalism of Isaiah 56:3-7 alongside the exclusion of Deuteronomy 23.
The harmonizing tradition, represented by Block's NAC and the IVP Bible Background Commentary, runs in two main directions. First, the gender argument: Deuteronomy 23:3 uses the masculine form מוֹאָבִי (moʾavi), so the bar applies only to Moabite men, not women — a reading the Mishnah develops explicitly (m. Yevamot 8:3, 'an Ammonite and a Moabite are forbidden … but their women are permitted') precisely to legitimate David's ancestry. Second, the conversion argument: Ruth's confession, 'your people shall be my people, and your God my God' (Ruth 1:16), incorporates her into Israel and dissolves her Moabite status. Both are coherent and were taken seriously within the tradition; the gender reading in particular has real grammatical purchase, since Hebrew gentilics are gendered.
Neither move, however, holds against the texts in tension. The masculine-only distinction is not stated in Deuteronomy 23; it is a rabbinic inference framed centuries later for the express purpose of protecting David's line, and Ezra's own program does not honor it — Ezra 9-10 targets the foreign wives, the women, specifically. The conversion argument fails on the narrative's own insistence: Ruth is still 'Ruth the Moabitess' in 2:2, 2:21, and even in 4:10, where Boaz publicly acquires 'Ruth the Moabitess … to be my wife' before the elders. The book will not let her ethnic identity dissolve; that retention is part of the point. The most economical reading is that Israelite and early Jewish opinion on intermarriage with Moabites was genuinely divided across the biblical period — inclusive in Ruth and Isaiah 56, exclusionary in Deuteronomy 23 and Ezra-Nehemiah — and that the canon preserves both poles without harmonizing them. The later gender and conversion arguments are best understood not as the texts' own resolution but as downstream attempts to reconcile a tension the tradition itself felt acutely.
Where the critical reading lands: a genuine, and very likely deliberate, intra-canonical contradiction.
Sources for this reading