Leviticus 20:10

20:10 If a man commits adultery with his neighbor’s wife, both the adulterer and the adulteress must be put to death.

Deuteronomy 22:21-24

22:21 the men of her city must bring the young woman to the door of her father’s house and stone her to death, for she has done a disgraceful thing in Israel by behaving like a prostitute while living in her father’s house. In this way you will purge evil from among you.

22:22 If a man is caught having sexual relations with a married woman both the man who had relations with the woman and the woman herself must die; in this way you will purge evil from Israel.

22:23 If a virgin is engaged to a man and another man meets her in the city and has sexual relations with her, 22:24 you must bring the two of them to the gate of that city and stone them to death, the young woman because she did not cry out though in the city and the man because he violated his neighbor’s fiancée; in this way you will purge evil from among you.

Ezekiel 16:38-40

16:38 I will punish you as an adulteress and murderer deserves. I will avenge your bloody deeds with furious rage. 16:39 I will give you into their hands and they will destroy your chambers and tear down your pavilions. They will strip you of your clothing and take your beautiful jewelry and leave you naked and bare. 16:40 They will summon a mob who will stone you and hack you in pieces with their swords.

Ezekiel 23:47

23:47 That army will pelt them with stones and slash them with their swords; they will kill their sons and daughters and burn their houses.