When you come into the land which the Lord your God is giving you,
you shall not learn to follow the abominations of those nations.
Deuteronomy 18:9

This is not a suggestion, it’s a deeply serious command.

If you’re a believer, then you are not to follow the abominations of the world you live in. Believers are called to be separate from the world.

vs:10-11
There shall not be found among you:
anyone who makes his son or his daughter pass through the fire,
or one who practices witchcraft,
or a soothsayer,
or one who interprets omens,
or a sorcerer,
or one who conjures spells,
or a medium,
or a spiritist,
or one who calls up the dead.

Involvement in any occult practices is spiritual adultery. There is power in the occult, but it is power from God’s enemy. For anything of a supernatural nature, whether guidance, or help of any kind, we are to go to God alone. Any involvement in the occult is so serious that it brings judgment on the one involving himself in it, not only to him but to his children down to the third and fourth generation. Involvement in the occult always brings a curse. Involvement in the occult is deadly.

God states that not only are these abominations in his sight, but those WHO DO THEM are an abomination before him.

vs 12:
FOR ALL WHO DO THESE THINGS ARE AN ABOMINATION TO THE LORD…