Leviticus 20:6

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

Leviticus 19:31

Regard not them that have familiar spirits, neither seek after wizards, to be defiled by them: I am the LORD your God.

Leviticus 20:27

A man also or a woman that hath a familiar spirit, or that is a wizard, shall surely be put to death: they shall stone them with stones: their blood shall be upon them.

Isaiah 8:19

And when they shall say to you, Seek to them that have familiar spirits, and to wizards that peep, and that mutter: should not a people seek to their God? for the living to the dead?

Exodus 34:15-16

Lest thou make a covenant with the inhabitants of the land, and they go astray after their gods, and do sacrifice to their gods, and one call thee, and thou eat of his sacrifice;

Leviticus 19:26

Ye shall not eat any thing with the blood: neither shall ye use enchantment, nor observe times.

Numbers 15:39

And it shall be to you for a fringe, that ye may look upon it, and remember all the commandments of the LORD, and do them; and that ye seek not after your own heart and your own eyes, after which ye use to go astray:

Deuteronomy 18:10-14

There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch,

1 Chronicles 10:13-14

So Saul died for his transgression which he committed against the LORD, even against the word of the LORD, which he kept not, and also for asking counsel of one that had a familiar spirit, to inquire of it;

Psalm 73:27

For lo, they that are far from thee shall perish: thou hast destroyed all them that go astray from thee.

Ezekiel 6:9

And they that escape of you shall remember me among the nations whither they shall be carried captives, because I am broken with their apostate heart, which hath departed from me, and with their eyes which go astray after their idols: and they shall lothe themselves for the evils which they have committed in all their abominations.

Hosea 4:12

My people ask counsel at their stocks, and their staff declareth to them: for the spirit of lewdness hath caused them to err, and they have gone astray from under their God.

Treasury of Scripture Knowledge

Summary

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.

Bible References

Familiar

Leviticus 20:27
A man also or a woman that hath a familiar spirit, or that is a wizard, shall surely be put to death: they shall stone them with stones: their blood shall be upon them.
Leviticus 19:26
Ye shall not eat any thing with the blood: neither shall ye use enchantment, nor observe times.
Deuteronomy 18:10
There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch,
Isaiah 8:19
And when they shall say to you, Seek to them that have familiar spirits, and to wizards that peep, and that mutter: should not a people seek to their God? for the living to the dead?

Go

Exodus 34:15
Lest thou make a covenant with the inhabitants of the land, and they go astray after their gods, and do sacrifice to their gods, and one call thee, and thou eat of his sacrifice;
Numbers 15:39
And it shall be to you for a fringe, that ye may look upon it, and remember all the commandments of the LORD, and do them; and that ye seek not after your own heart and your own eyes, after which ye use to go astray:
Psalm 73:27
For lo, they that are far from thee shall perish: thou hast destroyed all them that go astray from thee.
Ezekiel 6:9
And they that escape of you shall remember me among the nations whither they shall be carried captives, because I am broken with their apostate heart, which hath departed from me, and with their eyes which go astray after their idols: and they shall lothe themselves for the evils which they have committed in all their abominations.
Hosea 4:12
My people ask counsel at their stocks, and their staff declareth to them: for the spirit of lewdness hath caused them to err, and they have gone astray from under their God.

General references

Exodus 22:18
Thou shalt not suffer a witch to live.
Leviticus 18:29
For whoever shall commit any of these abominations, even the souls that commit them shall be cut off from among their people.
Leviticus 19:31
Regard not them that have familiar spirits, neither seek after wizards, to be defiled by them: I am the LORD your God.
Leviticus 23:30
And whatever soul it may be that doeth any work in that same day, the same soul will I destroy from among his people.