Leviticus 20:5-8

⁵then I will set my face against that man, and against his family, and will cut him off, and all that play the harlot after him, to play the harlot with Molech, from among their people.

⁶And the soul that turneth unto them that have familiar spirits, and unto the wizards, to play the harlot after them, I will even set my face against that soul, and will cut him off from among his people.

⁷Sanctify yourselves therefore, and be ye holy; for I am Jehovah your God.

⁸And ye shall keep my statutes, and do them: I am Jehovah who sanctifieth you.