Lev레 Leviticus레위기, chapter장 Book of Leviticus레위기, chapter장 20

If any man take his sister, the daughter of his father, or the daughter of his mother, and see her nakedness, and she behold her brother’s shame: they have committed a crime: they shall be slain, in the sight of their people, because they have discovered one another’s nakedness, and they shall bear their iniquity.