Leviticus 20:19

19 " 'Do not have sex with the sister of either your mother or your father. That would bring shame on a close relative. Both of you would be held accountable for what you have done.

Leviticus 20:19 Meaning and Commentary

Leviticus 20:19

And thou shalt not uncover the nakedness of thy mother's
sister, nor of thy father's sister
An aunt either by mother or father's side, against which the law is, ( Leviticus 18:13 ) ; for he uncovereth his near kin;
as an aunt is to a man, and so an uncle to a woman, and both equally criminal; for it is a rule that holds good in all those cases, though not expressed, that what is binding upon one sex is upon the other, being in the same degree of relation, whether of consanguinity or affinity: they shall bear their iniquity;
"both" of them, as the Vulgate Latin version, the man and his aunt, and so a woman and her uncle; the guilt of their sin shall be upon them,
and the punishment of it be inflicted on them; either they should be cut off from their people, as before, or be childless, as in the following instances.

Leviticus 20:19 In-Context

17 " 'Suppose a man gets married to his sister and has sex with her. That is a shameful thing to do. It does not matter whether she is the daughter of his father or of his mother. They must be cut off right in front of their own people. That man has brought shame on his sister. He will be held accountable for what he has done.

18 " 'Suppose a man makes love to a woman during her monthly period. He has uncovered the place where her bleeding was coming from. And she has let him do it. So they must be cut off from their people.

19 " 'Do not have sex with the sister of either your mother or your father. That would bring shame on a close relative. Both of you would be held accountable for what you have done.

20 " 'Suppose a man has sex with his aunt. Then he has brought shame on his uncle. Both of them will be held accountable for what they have done. They will die without having any children.

21 " 'Suppose a man gets married to his brother's wife. That is something that should never be done. He has brought shame on his brother. Neither of them will have any children.