Copulation

Forbidden between persons near of kin

• Leviticus 18:6–16

  None of you shall approach to any that is near of kin to him, to uncover their nakedness: I am the LORD. The nakedness of thy father, or the nakedness of thy mother, shalt thou not uncover: she is thy mother; thou shalt not uncover her nakedness. The nakedness of thy father's wife shalt thou not uncover: it is thy father's nakedness. …

During menses

• Leviticus 15:19

  And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even.

• Leviticus 18:19

  Also thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness.

With animals