Leviticus 20:4-8

And if the people of the land do any ways hide their eyes from the man, when he giveth of his seed unto Molech, and kill him not:

Then I will set my face against that man, and against his family, and will cut him off, and all that go a whoring after him, to commit whoredom with Molech, from among their people.

And the soul that turneth after such as have familiar spirits, and after wizards, to go a whoring after them, I will even set my face against that soul, and will cut him off from among his people.

Sanctify yourselves therefore, and be ye holy: for I am the LORD your God.

And ye shall keep my statutes, and do them: I am the LORD which sanctify you.