Leviticus 18:23-25

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.