Leviticus 20:19

New Revised Standard Version Catholic Interconfessional

You shall not uncover the nakedness of your mother's sister or of your father's sister, for that is to lay bare one's own flesh; they shall be subject to punishment.

Cross References

Exodus 6:20

Amram married Jochebed his father's sister and she bore him Aaron and Moses, and the length of Amram's life was one hundred thirty-seven years.

Leviticus 18:6

None of you shall approach anyone near of kin to uncover nakedness: I am the Lord.