TSK · Deuteronomy 22:30

If a man goes to bed with his father’s wife, he has exposed his father’s nakedness. Both of them must be put to death; their blood guilt is on themselves.

He said,“Who are you?” She replied,“I am Ruth, your servant. Marry your servant, for you are a guardian of the family interests.”

Church Discipline It is actually reported that sexual immorality exists among you, the kind of immorality that is not permitted even among the Gentiles, so that someone is cohabiting with his father’s wife.