Leviticus 18:28-30

28If you defile the land, it will vomit you out as it has vomited out the nations that were before you.

29Any person who does any of these detestable practices is to be cut off from his people.

30You must keep my instruction to not do any of the detestable customs that were practiced before you, so that you do not defile yourselves by them; I am the Lord your God.”