Leviticus 18:13

11 The nakedness of thy father’s wife’s daughter, begotten of thy father, she is thy sister, thou shalt not uncover her nakedness.

12 Thou shalt not uncover the nakedness of thy father’s sister: she is thy father’s near kinswoman.

Thou shalt not uncover the nakedness of thy mother’s sister: for she is thy mother’s near kinswoman.

14 Thou shalt not uncover the nakedness of thy father’s brother, thou shalt not approach to his wife: she is thine aunt.

15 Thou shalt not uncover the nakedness of thy daughter in law: she is thy son’s wife; thou shalt not uncover her nakedness.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
You must not have sexual relations with your mother’s sister, for she is your mother’s close relative.
KJV
Thou shalt not uncover the nakedness of thy mother’s sister: for she is thy mother’s near kinswoman.
WEB
“‘You shall not uncover the nakedness of your mother’s sister, for she is your mother’s near kinswoman.
ASV
Thou shalt not uncover the nakedness of thy mother`s sister: for she is thy mother`s near kinswoman.
DARBY
The nakedness of thy mother's sister shalt thou not uncover; for she is thy mother's near relation.
BLB
The nakedness of the sister of your mother you shall not uncover, for she [is] a close relative of your mother.
ÅB
Din mors søster skal du ikke ha omgang med; for hun er din mors nære slekt.
OTB
Du skal ikke avdekke din mors søsters nakenhet, for hun er din mors nære slektning.
B1930
Din mors søster skal du ikke ha omgang med; for hun er din mors nære slekt.

Study notes (Tyndale)

Original text and word study