There seems to be a confusion as to what is legal in Christianity, or even Judaism.

The old temple was constructed in adherence to the Fibonacci sequence, the pattern that human structure, plants and most of God's creation took. It does not mean that modern adherents of cultists and new age demon worship who draw patterns in the same sequence and use them to conjure demons are doing anything that God would approve.

Some Israelites were just as confused. Prophet Ezekiel did explore this phenomenon. Israelites started using the temple for idolatry. God opened his eyes to the evil that was happening within the temple ...

And he brought me into the inner court of the LORD's house, and, behold, at the door of the temple of the LORD, between the porch and the altar, were about five and twenty men, with their backs toward the temple of the LORD, and their faces toward the east; and they worshipped the sun toward the east.
Ezekiel:8:16

Amos on worshipping other gods, and the consequences...

It is easy to buy into idol worship when it is normaliced by the society. It was for this reason that God tried hard to keep idolaters away from Israel. But they forgot why one day, mingled with their neighbours and their gods, and mixed Judaism with idolatry. God was clear. It was unacceptable...

But ye have borne the tabernacle of your Moloch and Chiun your images, the star of your god, which ye made to yourselves.
Amos:5:26
Therefore will I cause you to go into captivity beyond Damascus, saith the LORD, whose name is The God of hosts.
Amos:5:27

So if you are thinking of mixing witchcraft, qabbalism, freemasonry, and a little Christianity; they can't mix. You can't serve two masters at the same time.