Leviticus 20:10

‘And you shall not lie sexually with your neighbor’s wife, to be defiled with her.

and a man lies sexually with her, and it is hidden from the eyes of her husband, and she is undetected; but she has defiled herself, and there is no witness against her, and she has not been caught in the act,

“If a man is found lying with a married woman, then both of them shall die, the man who lay with the woman, and the woman; thus you shall purge the evil from Israel.

And the woman became pregnant; and she sent and told David, and said, “I am pregnant.”

Then David said to Nathan, “I have sinned against Yahweh.” And Nathan said to David, “Yahweh also has taken away your sin; you shall not die.

“For that would be lewdness; Moreover, it would be an iniquity punishable by judges.

‘The assembly will stone them with stones and cut them down with their swords; they will kill their sons and their daughters and burn their houses with fire.

“But not one has done so, even one who has a remnant of the Spirit. And what did that one do while he was seeking a godly seed? Be careful then to keep your spirit, and let no one deal treacherously against the wife of your youth.

“Now in the Law Moses commanded us to stone such women; what then do You say?”