Leviticus 20:6

"And 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. Sanctify yourselves therefore, and be ye holy; for I am Jehovah your God. And ye shall keep my statutes, and do them: I am Jehovah who sanctifieth you. For every one that curseth his father or his mother shall surely be put to death: he hath cursed his father or his mother; his blood shall be upon him."

Leviticus 20:6 ... "To play the harlot" is equivalent to the same words in Leviticus 20:5, above. It is a mistake to read this merely as "spiritual adultery." Of course, it was also that, but there was the grossest kind of immorality connected with all phases of pagan worship. Furthermore, the mention of harlotry in connection with the visitation of wizards, witches, etc., as connected with this vice gives a glimpse of the immorality often associated with such persons.

"Everyone that curseth his father or his mother shall surely be put to death ..." (Leviticus 20:9). "This is the only crime in this chapter that was not mentioned in Leviticus 18."[4] It is not here stated that the offender should be stoned, but Jamieson was of the opinion that, "When no specific form of execution was specified, stoning was implied."[5] Many have sought to refer the meaning of this offense to something more serious than merely cursing father or mother, but our view is that that crime was more serious than some might think. Orlinsky rendered it "insults" or "repudiates."[6] Wenham wrote that, "To curse means more than uttering the occasional angry word (2 Samuel 16:ff; Job 3:1ff). It is the very antithesis of honoring one's father and mother.[7]