Leviticus 18:3, 27-30

In the past you lived in Egypt, but you must not do what was done in that country. And you must not do as they do in the land of Canaan, where I am bringing you. Do not follow their customs.

The people who lived in the land before you did all these hateful things and made the land unclean. If you do these things, you will also make the land unclean, and it will throw you out as it threw out the nations before you. Anyone who does these hateful sins must be cut off from the people. Keep my command not to do these hateful sins that were done by the people who lived in the land before you. Don’t make yourself unclean by doing them. I am the LORD your God.’ ”