Leviticus 18:28-30

Unlawful Sexual Relations

²⁸ lest the land vomit you out when you make it unclean, as it vomited out the nation that was before you. ²⁹ For everyone who does any of these abominations, the persons who do them shall be cut off from among their people. ³⁰ _q So keep my charge never to practice _r any of these abominable customs that were practiced before you, and never to make yourselves unclean by them: _s I am the Lord your God."

1. Cross References
   Leviticus 22:9
   They shall therefore keep my charge, lest they bear sin for it and die thereby when they profane it: I am the Lord who sanctifies them.
   
2. Cross References
   Leviticus 18:3
   You shall not do as they do in the land of Egypt, where you lived, and you shall not do as they do in the land of Canaan, to which I am bringing you. You shall not walk in their statutes.
   Leviticus 18:26
   But you shall keep my statutes and my rules and do none of these abominations, either the native or the stranger who sojourns among you
   Leviticus 20:23
   And you shall not walk in the customs of the nation that I am driving out before you, for they did all these things, and therefore I detested them.
   Deuteronomy 18:9
   When you come into the land that the Lord your God is giving you, you shall not learn to follow the abominable practices of those nations.
   
3. Cross References
   Leviticus 18:2
   Speak to the people of Israel and say to them, I am the Lord your God.