Leviticus 20:10

Whatever man shall commit adultery with the wife of a man, or whoever shall commit adultery with the wife of his neighbour, let them die the death, the adulterer and the adulteress.

And the man that committeth adultery with another man’s wife, even he that committeth adultery with his neighbour’s wife, the adulterer and the adulteress shall surely be put to death.

“‘The man who commits adultery with another man’s wife, even he who commits adultery with his neighbor’s wife, the adulterer and the adulteress shall surely be put to death.