Leviticus 20:11 in the King James Version
And the man that lieth with his father’s wife hath uncovered his father’s nakedness: both of them shall surely be put to death; their blood shall be upon them.
Context
10 “‘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.
11 “‘The man who lies with his father’s wife has uncovered his father’s nakedness. Both of them shall surely be put to death. Their blood shall be upon themselves.
12 “‘If a man lies with his daughter-in-law, both of them shall surely be put to death. They have committed a perversion. Their blood shall be upon themselves.