Leviticus 18:20 (KJV)

Thou shalt not uncover the nakedness of thy daughter in law: she is thy son's wife; thou shalt not uncover her nakedness.

Thou shalt not uncover the nakedness of thy brother's wife: it is thy brother's nakedness.

Thou shalt not uncover the nakedness of a woman and her daughter, neither shalt thou take her son's daughter, or her daughter's daughter, to uncover her nakedness; for they are her near kinswomen: it is wickedness.

Neither shalt thou take a wife to her sister, to vex her, to uncover her nakedness, beside the other in her life time.

Also thou shalt not approach unto a woman to uncover her nakedness, as long as she is put apart for her uncleanness.

And thou shalt not let any of thy seed pass through the fire to Molech, neither shalt thou profane the name of thy God: I am the LORD.

Thou shalt not lie with mankind, as with womankind: it is abomination.

Neither shalt thou lie with any beast to defile thyself therewith: neither shall any woman stand before a beast to lie down thereto: it is confusion.

Defile not ye yourselves in any of these things: for in all these the nations are defiled which I cast out before you:

And the land is defiled: therefore I do visit the iniquity thereof upon it, and the land itself vomiteth out her inhabitants.