Leviticus 18:8

Laws Of Sexual Relations

⁷ You are not to shame your father by having sex with your mother. She is your mother; you must not have sexual intercourse with her. ⁸ You are not to have sex with your father’s wife; it will shame your father. ⁹ You are not to have sexual intercourse with your sister, either your father’s daughter or your mother’s, whether born at home or born elsewhere. You are not to have sex with her.

Sexual Relations

Leviticus 20:11

If a man sleeps with his father’s wife, he has shamed his father. Both of them must be put to death; their blood is on their own hands.

1 Corinthians 5:1

It is widely reported that there is sexual immorality among you, and the kind of sexual immorality that is not even tolerated among the Gentiles—a man is living with his father’s wife.

Deuteronomy 22:30

“A man is not to marry his father’s wife; he must not violate his father’s marriage bed.

Deuteronomy 27:20

‘The one who sleeps with his father’s wife is cursed, for he has violated his father’s marriage bed.’
And all the people will say, ‘Amen!’

Genesis 49:4

Turbulent as water, you will no longer excel,
because you got into your father’s bed
and you defiled it—he got into my bed.

Amos 2:7

They trample the heads of the poor
on the dust of the ground
and block the path of the needy.
A man and his father have sexual relations
with the same girl,
profaning My holy name.

Genesis 35:22

While Israel was living in that region, Reuben went in and slept with his father’s concubine Bilhah, and Israel heard about it.

Jacob had 12 sons:

2 Samuel 16:21-22

Ahithophel replied to Absalom, “Sleep with your father’s concubines he left to take care of the palace. When all Israel hears that you have become repulsive to your father, everyone with you will be encouraged.”

Ezekiel 22:10

Men within you have sexual intercourse with their father’s wife and violate women during their menstrual impurity.