9 When thou art come into the land which Jehovah thy God giveth thee, thou shalt not learn to do after the abominations of those nations. 10 There shall not be found with thee any one that maketh his son or his daughter to pass through the fire, one that useth divination, one that practiseth augury, or an enchanter, or a sorcerer, 11 or a charmer, or a consulter with a familiar spirit, or a wizard, or a necromancer. 12 For whosoever doeth these things is an abomination unto Jehovah: and because of these abominations Jehovah thy God doth drive them out from before thee.
Matthew Henry's Commentary on Deuteronomy 18:9-12
Commentary on Deuteronomy 18:9-14
(Read Deuteronomy 18:9-14)
Was it possible that a people so blessed with Divine institutions, should ever be in any danger of making those their teachers whom God had made their captives? They were in danger; therefore, after many like cautions, they are charged not to do after the abominations of the nations of Canaan. All reckoning of lucky or unlucky days, all charms for diseases, all amulets or spells to prevent evil, fortune-telling, &c. are here forbidden. These are so wicked as to be a chief cause of the rooting out of the Canaanites. It is amazing to think that there should be any pretenders of this kind in such a land, and day of light, as we live in. They are mere impostors who blind and cheat their followers.