Your term 'new' is extravagant. I would not put a Jewish Faith totally based on the Tanach 2000 years old as new. It seems that since Rabbinic Judaism fails the LORD God of Israel in terms of being a "light to the nations" and evangelising them the LORD has raised up both Jew and Gentile to do this His way. Rabbi Gamaliel was a right. If it was not of the LORD it would go the way of other Jewish sects, fade away. Leave them alone he said or you could just be seen fighting God. It seems he was spot on.
12 Iraqi troops, militiamen killed in multiple ISIS suicide attacks (AP)
from the article: J'lem church officials suspect extremist Jews behind arson