"If a man takes his sister, a daughter of his father or a daughter of his mother, and sees her nakedness, and she sees his nakedness, it is a shameful thing, and they shall be cut off in the sight of the children of their people; he has uncovered his sister's nakedness, he shall bear his iniquity.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.
(Revised Standard Version - Holy Bible)