When I saw warmdüscher the singer definitely did a keybump mid set, even if he tried to hide it by turning his back to the audience. I don't know why he bothered, he was obviously really high from the moment he walked on in sunglasses and started talking about taking speed in the dressing room.
I might be slightly off the mark with my understanding so would appreciate if anyone can give better information, but afaik Jews never lived in the historical kingdoms of israel and Judea - YHWHism, the polytheistic predecessor religion that was just the ancient canaanite religion with a trendy new OC at the head, was practised there. The modern Jewish religion developed among the descendents of YHWHists who were kidnapped in the Babylonian exodus.