If a man is found lying with another man’s wife, both the man who slept with her and the woman must die. You must purge the evil from Israel.
KJV
If a man be found lying with a woman married to an husband, then they shall both of them die, [both] the man that lay with the woman, and the woman: so shalt thou put away evil from Israel.
ASV
If a man be found lying with a woman married to a husband, then they shall both of them die, the man that lay with the woman, and the woman: so shalt thou put away the evil from Israel.