Leviticus 20:11
"If a man has sexual relations with his father's wife, he has exposed his father's nakedness, so both of them are to be put to death. Their guilt will remain their responsibility.
Deuteronomy 27:20
"Cursed is the one who has sexual relations with his father's wife, because he has disgraced his father.' "Then all the people are to respond by saying, "Amen!'
Deuteronomy 27:23
""Cursed is the one who has sexual relations with his mother-in-law.' "Then all the people are to respond by saying, "Amen!'
Leviticus 18:7-8
"Neither your father's nakedness nor your mother's nakedness is to be exposed. She's your mother, so you are not to have sexual relations with her.
Amos 2:7
moving quickly to rub the face of the needy in the dirt. Corrupting the ways of the humble, a man and his father go to the same woman, deliberately defiling my holy name.
1 Corinthians 5:1
It is actually reported that sexual immorality exists among you, and of a kind that is not found even among the gentiles. A man is actually living with his father's wife!