You must be holy and keep yourselves holy because I am the LORD your God.
References for Leviticus 20:7
You will keep my rules and do them; I am the LORD, who makes you holy.
If anyone curses their father or mother, they must be executed. They have cursed their own father and mother; that person's blood is on their own heads.
If a man commits adultery with a married woman, committing adultery with a neighbor's wife, both the adulterer and the adulteress must be executed.
If a man has sexual intercourse with his father's wife, he has uncovered his father's nakedness. Both of them must be executed; their blood is on their own heads.
If a man has sexual intercourse with his daughter-in-law, both of them must be executed. They have acted perversely; their blood is on their own heads.
If a man has sexual intercourse with a man as he would with a woman, the two of them have done something detestable. They must be executed; their blood is on their own heads.
If a man marries a woman and her mother as well, it is shameful. They will be burned with fire—the man and the two women—so that no such shameful thing will be found among you.
If a man has sexual relations with an animal, he must be executed and you must kill the animal.
If a woman approaches any kind of animal to mate with it, you must kill the woman and the animal. They must be executed; their blood is on their own heads.
If a man marries his sister—his father's daughter or his mother's daughter—and they have sexual contact with each other, it is a disgrace. They will be cut off in the sight of their people. Such a man has had sexual contact with his sister; he will be liable to punishment.
If a man sleeps with a woman during her menstrual period and has sexual contact with her, he has exposed the source of her blood flow and she has uncovered the same. Both of them will be cut off from their people.
You must not have sexual contact with your mother's sister or your father's sister, because that exposes your own close relative; both of you will be liable to punishment.
If a man has sexual intercourse with his aunt, he has uncovered his uncle's nakedness. The man and the aunt will be liable to punishment; they will die childless.
If a man marries his brother's wife, it is indecent. He has uncovered his brother's nakedness; the man and the woman will be childless.