Leviticus 20:17-21

17 “If a man marries his sister, the daughter of either his father or his mother, and they have sexual relations, it is a shameful disgrace. They must be publicly cut off from the community. Since the man has violated his sister, he will be punished for his sin.

18 “If a man has sexual relations with a woman during her menstrual period, both of them must be cut off from the community, for together they have exposed the source of her blood flow.

19 “Do not have sexual relations with your aunt, whether your mother’s sister or your father’s sister. This would dishonor a close relative. Both parties are guilty and will be punished for their sin.

20 “If a man has sex with his uncle’s wife, he has violated his uncle. Both the man and woman will be punished for their sin, and they will die childless.

21 “If a man marries his brother’s wife, it is an act of impurity. He has violated his brother, and the guilty couple will remain childless.

Leviticus 20:17-21 Meaning and Commentary

INTRODUCTION TO LEVITICUS 20

In this chapter several laws are, repeated, enforced with a penalty annexed to them, and the breach them made capital, to deter from it, as giving seed to Molech, Le 20:1-5; going after such that have familiar spirits, or are wizards, Le 20:6; by shunning which, and other sins, a regard would be shown to holiness, Le 20:7,8; such as cursing parents, Le 20:9; committing adultery, Le 20:10; incestuous copulations, and marriages, and beastly actions, Le 20:11-21; all which it became the Israelites to avoid, lest, when come into the land of Canaan, they should be cast out of it, as the old inhabitants were for the same things, Le 20:22-24; and therefore, that they might appear to be a distinct people from others, they were to put a difference between clean and unclean creatures, Le 20:25,26; and the chapter is closed with a law, making it death for any person to have a familiar spirit, or to be a wizard, Le 19:27.