My Jewish Learning

Jewish Magic & the Blood Libels

"
Jews were persecuted “not so much for the observance of Hebrew ceremonies, as is often suggested and supposed, but for the practice of the dark and hideous traditions of Hebrew magic. Closely connected with these ancient sorceries are those ritual murders?In many cases the evidence is quite conclusive that the body, and especially the blood of the victim, was used for magical purposes.”
"

https://www.myjewishlearning.com/article/jewish-magic-the-blood-libels/