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Daily Mitzvah

Negative Commandment 340, 341, 342, 343, 344, 345

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Negative Commandment 340 (Digest)
Incest with a Paternal Aunt

"You shall not uncover the nakedness of your father's sister"Leviticus 18:12.

It is forbidden to have incestuous relations with one's father's sister.

Negative Commandment 341 (Digest)
Incest with a Maternal Aunt

"You shall not uncover the nakedness of your mother's sister"Leviticus 18:13.

It is forbidden to have incestuous relations with one's mother's sister.

Negative Commandment 342 (Digest)
Incest with an Uncle's Wife

"You shall not come near his wife; she is your aunt"Leviticus 18:14.

It is forbidden to have incestuous relations with one's father's brother's wife.

Negative Commandment 343 (Digest)
Incest with a Daughter-in-Law

"You shall not uncover the nakedness of your daughter-in-law"Leviticus 18:15.

It is forbidden to have incestuous relations with one's daughter-in-law.

Negative Commandment 344 (Digest)
Incest with a Brother's Wife

"You shall not uncover the nakedness of your brother's wife"Leviticus 18:16.

It is forbidden to have incestuous relations with one's brother's wife.

Negative Commandment 345 (Digest)
Incest with a Wife's Sister

"And you shall not take a woman with her sister"Leviticus 18:18.

It is forbidden to have incestuous relations with one's wife's sister—as long as the wife is alive [i.e. after her death, it is permitted to marry her sister].


Translation of (the unabridged text of) Sefer Hamitzvot by Rabbi Berel Bell, member of the Rabbinical Court of Montreal and director of Teacher Training for the Jewish Learning Institute.

From "Sefer Hamitzvot in English," published by Sichos in English.
Daily Quote
“And I will lead on slowly . . . until I come to my lord to Seir” (Genesis 33:14). Said Rabbi Abbahu: We have searched the entire Scriptures and did not find that Jacob ever went to Esau to the mountain of Seir. Is it possible that Jacob, the truthful, should deceive him? But when would he come to him? In the Messianic Era, when “the saviors shall ascend Mount Zion to judge the mountain of Esau.”
  –Midrash Rabbah
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