Leviticus 20:27
A man also or 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.
Cross-reference
In Leviticus 20:6, God warns against turning to mediums; the death penalty here enforces that warning.
Leviticus 20:2 also prescribes stoning — for child sacrifice. Both verses outline capital punishment by stoning for serious sins against God's order.
Leviticus 20:9 uses the same 'blood on their own head' formula for cursing parents, mirroring the death penalty statement here.
Leviticus 19:31 forbids seeking mediums as defilement; here the death penalty is prescribed for such practices.
Leviticus 24:14 commands stoning for blasphemy, showing the same judicial penalty for offenses violating God's holiness.
Exodus 22:18 commands the death of sorceresses, providing the same principle for dealing with occult practitioners as here.
Deuteronomy 18:10-12 lists the same forbidden occult practices and declares them detestable, reinforcing the death penalty here.
In 1 Samuel 28:7-9, Saul consults a medium at Endor, directly violating the command here to put mediums to death.
Deuteronomy 13:10 mandates stoning for those who entice others to idolatry, paralleling the death penalty for mediums here.
1 Samuel 28:3 records that Saul expelled mediums and spiritists, directly applying the law against them in Israel's history.
2 Kings 23:24 describes King Josiah removing mediums and spiritists, obeying the command given here centuries earlier.
1 Samuel 15:23 equates rebellion with the sin of divination, reinforcing the seriousness of the offense condemned here.
Malachi 3:5 lists sorcerers among those God will judge, echoing the condemnation of mediums in the law.