Leviticus 20:11
A man who has intercourse with one of his father's wives disgraces his father. Both he and the woman must be put to death. They are responsible for their own death.
Deuteronomy 27:20
Cursed is the man who has sexual activities with his father's wife, because he has violated his father's rights.' And all the people say: 'Amen.'
Deuteronomy 27:23
Cursed is he who indulges in sex with his mother-in-law. And all the people say: Amen.
Leviticus 18:7-8
especially your own mother. This would disgrace your father.
Amos 2:7
They pant after the dust of the earth on the head of lowly (meek) persons. They reject the humble! A man and his father have sexual relations with the same maiden, to profane my holy name.
1 Corinthians 5:1
It is reported that there is sexual immorality among you. This type of fornication is not even found among the people of the nations (who do not know God). There is a man who has his father's wife.