Leviticus 18:15

15 You shall not uncover the nakedness of your daughter-in-law: she is your son's wife; you shall not uncover her nakedness.

Leviticus 18:15 Meaning and Commentary

Leviticus 18:15

Thou shall not uncover the nakedness of thy daughter in law,
&c.] Shall not he with her in his son's lifetime, or marry her after his death: she [is] that son's wife;
and so one flesh with him, and who is of the same flesh and blood with his father, and therefore the nearness of the relation forbids such incestuous copulation or marriage: thou shall not uncover her nakedness;
or have carnal knowledge of her, whether in the life or after the death of his son, even then marriage with her is not lawful.

Leviticus 18:15 In-Context

13 You shall not uncover the nakedness of your mother's sister, for she is your mother's flesh.

14 You shall not uncover the nakedness of your father's brother, that is, you shall not approach his wife; she is your aunt.

15 You shall not uncover the nakedness of your daughter-in-law: she is your son's wife; you shall not uncover her nakedness.

16 You shall not uncover the nakedness of your brother's wife; it is your brother's nakedness.

17 You shall not uncover the nakedness of a woman and her daughter, and you shall not take her son's daughter or her daughter's daughter to uncover her nakedness; they are your flesh; it is depravity.