18If a man lies with a woman and has an emission of semen, both of them shall bathe themselves in water and be unclean until the evening.
The act of sexual intercourse may be a polemic against other cultures in the ancient Near East. Temple prostitution, for example, was common practice within sanctuaries and shrines of pagan gods. Such practices were forbidden for the Hebrews.
18 If a man lies with a woman and has an emission of semen, both of them shall bathe themselves in water and be unclean until the evening.