Leviticus 15:23
And if it be on her bed, or on any thing whereon she sitteth, when he toucheth it, he shall be unclean until the even.
And if it be on her bed, or on anything whereon she sitteth,.... That is, if any person or thing should be upon her bed or seat; a vessel on her bed, or a vessel upon a vessel, as Aben Ezra expresses it:
when he toucheth it; that person or thing that should be on her bed or seat, as well as touch her bed or seat:
shall be unclean until the even; in a ceremonial sense; so defiling was a woman in such circumstances, and to whom the Scriptures often compare unclean persons and things: and Pliny {i} speaks of menstrues as very infectious, or worse, to various creatures and things, in a natural way.
{i} Nat. Hist. l. 7. c. 15.