Leviticus 20:19 in the King James Version
And thou shalt not uncover the nakedness of thy mother’s sister, nor of thy father’s sister: for he uncovereth his near kin: they shall bear their iniquity.
Context
18 “‘If a man lies with a woman having her monthly period, and uncovers her nakedness, he has made her fountain naked, and she has uncovered the fountain of her blood. Both of them shall be cut off from among their people.
19 “‘You shall not uncover the nakedness of your mother’s sister, nor of your father’s sister, for he has made his close relative naked. They shall bear their iniquity.
20 If a man lies with his uncle’s wife, he has uncovered his uncle’s nakedness. They shall bear their sin. They shall die childless.