Leviticus 18:11
The nakedness of thy father's wife's daughter, begotten of thy father, she is thy sister, thou shalt not uncover her nakedness.
More from Leviticus 18
Verse 1
And the LORD spake unto Moses, saying,
Verse 2
Speak unto the children of Israel, and say unto them, I am the LORD your God.
Verse 3
After the doings of the land of Egypt, wherein ye dwelt, shall ye not do: and after the doings of the land of Canaan, whither I bring you, shall ye not do: neither shall ye walk in their ordinances.
Verse 4
Ye shall do my judgments, and keep mine ordinances, to walk therein: I am the LORD your God.
Verse 5
Ye shall therefore keep my statutes, and my judgments: which if a man do, he shall live in them: I am the LORD.