| Application to gentiles: |
Required |
| Mandated punishment for violation: |
From Heaven |
| Brief description: |
For a man not to have intercourse with his granddaughter from his son. This rule was not binding on gentiles under the original Seven Noahide Laws, but in ancient times the human race voluntarily adopted the stricter prohibitions on marital relations as found in Jewish Law, and this and similar restrictions have applied to all gentiles ever since. |
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| Category: |
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| Biblical source(s) (Rambam): |
Lev. 18:10 |
| Biblical source (Sefer HaChinuch): |
Lev. 18:10 |
| Number in Sefer HaChinuch: |
193 |
Sources explaining relevance to gentiles:
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- Rashi, Bereishis 34:7; Bemidbar 22:5
Gentiles restricted themselves from the arayos (i.e., all those not forbidden under the Noahide Laws).
- Rashi, Bereishis 19:33; 20:1
Gentile relations not prohibited by Noahide Law are nonetheless condemned.
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