Leviticus 20:19

19 You must not have sexual contact with your mother's sister or your father's sister, because that exposes your own close relative; both of you will be liable to punishment.

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 If a man marries his sister—his father's daughter or his mother's daughter—and they have sexual contact with each other, it is a disgrace. They will be cut off in the sight of their people. Such a man has had sexual contact with his sister; he will be liable to punishment.

18 If a man sleeps with a woman during her menstrual period and has sexual contact with her, he has exposed the source of her blood flow and she has uncovered the same. Both of them will be cut off from their people.

19 You must not have sexual contact with your mother's sister or your father's sister, because that exposes your own close relative; both of you will be liable to punishment.

20 If a man has sexual intercourse with his aunt, he has uncovered his uncle's nakedness. The man and the aunt will be liable to punishment; they will die childless.

21 If a man marries his brother's wife, it is indecent. He has uncovered his brother's nakedness; the man and the woman will be childless.