Leviticus 18:9

New American Bible - revised edition

You shall not have intercourse with your sister, your father’s daughter or your mother’s daughter, whether she was born in your own household or born elsewhere.

Cross References

Ezekiel 22:11

There are those in you who do abominable things with their neighbors’ wives, men who defile their daughters-in-law by incest, men who coerce their sisters to intercourse, the daughters of their own fathers.

Leviticus 18:10

You shall not have intercourse with your son’s daughter or with your daughter’s daughter, for that would be a disgrace to you.

Leviticus 18:11

You shall not have intercourse with the daughter whom your father’s wife bore to him in his household, since she, too, is your sister.

Leviticus 20:17

If a man marries his sister, his father’s daughter or his mother’s daughter, and they have intercourse with each other, that is disgraceful; they shall be publicly cut off from the people; the man shall bear the penalty of having had intercourse with his own sister.

Deuteronomy 27:22

“Cursed be anyone who has relations with his sister, whether his father’s daughter or his mother’s daughter!” And all the people shall answer, “Amen!”