Leviticus 15:19-24

19A woman will bleed every month. She is unclean for seven days. A person might touch the woman when she is bleeding. That person will remain unclean until evening.

20The woman who is bleeding might lie on a bed. The bed will become unclean. If the woman sits on something, it becomes unclean.

21If another person touches the bed, he must wash his clothes and his body. He will be unclean until evening.

22Another person might sit on the thing that she sat on. That person must wash his clothes and his body. He will be unclean until evening.

23A person might touch anything that the woman sat on. If he does, he is unclean until evening.

24A man might lie down with a woman. If her blood touches him, he is unclean for seven days. Any bed that the man lies on becomes unclean.