International Standard Version "If a man has sexual relations with his daughter-in-law, the two are to be put to death. They've committed a repulsive act. Their guilt will remain their responsibility.
American Standard Version And if a man lie with his daughter-in-law, both of them shall surely be put to death: they have wrought confusion; their blood shall be upon them.
Young's Literal Translation And a man who lieth with his daughter-in-law -- both of them are certainly put to death; confusion they have made; their blood is on them.