Leviticus 20:6

As for the person who turns to the mediums and the soothsayers to prostitute after them, I will set my face against that person, and I will cut him off from the midst of his people.

Leviticus 19:31

" 'You shall not turn to the mediums and to the soothsayers; you shall not seek [them] to become unclean with them; I [am] Yahweh your God.

Leviticus 20:27

" 'And a man or a woman, if a spirit of the dead or a spirit of divination is in them, they shall surely be put to death; they shall stone them with stones--their blood [is] on them.'"

Isaiah 8:19

Now if they tell you, "Consult the ghosts and the spirits, those who chirp and those who mutter. Should not a people consult its gods, the dead on behalf of the living,

Exodus 34:15-16

lest you make a covenant with the inhabitants of the land, and they prostitute [themselves] after their gods, and they sacrifice to their gods, and they invite you, and you eat their sacrifice,

Leviticus 19:26

" 'You must not eat [anything] with the blood; you shall not practice divination, nor shall you interpret signs.

Numbers 15:39

You will have a tassel {for you to look at} and remember all the commands of Yahweh and do them, and not follow {after the unfaithfulness of your own heart and eyes},

Deuteronomy 18:10-14

[There] shall not be found among you one who makes his son or his daughter go through the fire, [or] {one who practices divination}, [or] an interpreter of signs, or an augur, or sorcerer,

1 Chronicles 10:13-14

So Saul died on account of his sin which he had sinned against Yahweh concerning the command of Yahweh that he did not keep. He also consulted a medium to seek [guidance].

Psalm 73:27

For indeed, [those] distancing themselves from you will be ruined. You destroy each who abandons you for harlotry.

Ezekiel 6:9

And your fugitives will remember me among the nations [to] which they were taken captive, that I was shattered by {their adulterous heart} which departed from me, and by {their adulterous eyes} which [went] after their idols, and they will feel loathing {for themselves}, for the evil that they did, for all of their detestable things.

Hosea 4:12

My people, consult {their wooden idols}, and their divining rod gives them oracles; because a spirit of whoredom led [them] astray, and they played the whore 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
" 'And a man or a woman, if a spirit of the dead or a spirit of divination is in them, they shall surely be put to death; they shall stone them with stones--their blood [is] on them.'"
Leviticus 19:26
" 'You must not eat [anything] with the blood; you shall not practice divination, nor shall you interpret signs.
Deuteronomy 18:10
[There] shall not be found among you one who makes his son or his daughter go through the fire, [or] {one who practices divination}, [or] an interpreter of signs, or an augur, or sorcerer,
Isaiah 8:19
Now if they tell you, "Consult the ghosts and the spirits, those who chirp and those who mutter. Should not a people consult its gods, the dead on behalf of the living,

Go

Exodus 34:15
lest you make a covenant with the inhabitants of the land, and they prostitute [themselves] after their gods, and they sacrifice to their gods, and they invite you, and you eat their sacrifice,
Numbers 15:39
You will have a tassel {for you to look at} and remember all the commands of Yahweh and do them, and not follow {after the unfaithfulness of your own heart and eyes},
Psalm 73:27
For indeed, [those] distancing themselves from you will be ruined. You destroy each who abandons you for harlotry.
Ezekiel 6:9
And your fugitives will remember me among the nations [to] which they were taken captive, that I was shattered by {their adulterous heart} which departed from me, and by {their adulterous eyes} which [went] after their idols, and they will feel loathing {for themselves}, for the evil that they did, for all of their detestable things.
Hosea 4:12
My people, consult {their wooden idols}, and their divining rod gives them oracles; because a spirit of whoredom led [them] astray, and they played the whore from under their God.

General references

Exodus 22:18
" 'You will not let a witch live.
Leviticus 18:29
Indeed, anyone who does any of these detestable things, even those persons who do so shall be cut off from the midst of their people.
Leviticus 19:31
" 'You shall not turn to the mediums and to the soothsayers; you shall not seek [them] to become unclean with them; I [am] Yahweh your God.
Leviticus 23:30
As for any person who does any work on {this very same day}, I will exterminate that person from the midst of his people.