Leviticus 20:19

19 Thou shalt not discover the filth(hood) of thy mother's sister, and of thy father's sister; he, that doeth this, shall make naked the shame of his flesh, and both they shall bear their wickedness. (Thou shalt not uncover the nakedness of thy mother's sister, or of thy father's sister; he, who doeth this, shall make naked his own kin's flesh, and they both shall bear their wickedness.)

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 He that taketh his sister, his father's daughter, or his mother's daughter, and seeth her filth(hood), and she seeth the shame of her brother, they have wrought an unleaveful thing, both shall be slain in the sight of their people; for they showed together their filth(hood), and they shall bear together their wickedness. (He who taketh to bed his sister, his father's daughter, or his mother's daughter, and seeth her nakedness, and she seeth her brother's nakedness, they both have done an unlawful thing, and they both shall be cut off in the presence of their people; for they uncovered their nakedness to each other, and so they shall bear their wickedness together.)

18 If a man doeth fleshly knowing with a woman in the flowing of blood of the month, and showeth her filth(hood), and she openeth the well of her blood, both they shall be slain from the midst of their people. (If a man doeth fleshly knowing with a woman during the flowing out of the blood of the month, and uncovereth her nakedness, and she openeth the well of her blood to him, they both shall be cut off from the midst of their people.)

19 Thou shalt not discover the filth(hood) of thy mother's sister, and of thy father's sister; he, that doeth this, shall make naked the shame of his flesh, and both they shall bear their wickedness. (Thou shalt not uncover the nakedness of thy mother's sister, or of thy father's sister; he, who doeth this, shall make naked his own kin's flesh, and they both shall bear their wickedness.)

20 He that doeth fleshly knowing with the wife of his father's brother, either of his mother's brother, and showeth the filth(hood) of his kin, both they shall bear their sin, [and] they shall die without free children. (He who doeth fleshly knowing with the wife of his father's brother, or the wife of his mother's brother, and uncovereth the nakedness of his kin, they both shall bear their sin, and they shall die without any children.)

21 He that weddeth his brother's wife, doeth an unleaveful thing; he showed his brother's filth(hood), [and] he shall be without free children. (He who weddeth his brother's wife, doeth an unlawful thing; he uncovered her nakedness which is for his brother alone, and they shall die without any children.)