Some of them permit it though.
https://www.haaretz.com/2009-11-09/ty-article/west-bank-rabbi-jews-can-kill-gentiles-who-threaten-israel/0000017f-e28c-d38f-a57f-e6deda480000
Anyway, you shouldn't leap to conclusions.
It seems rather obvious that with this particular story, when all is said and done, the truth is going to be very, very different from 40 babies being beheaded.
It's rather interesting that Haaretz makes no mention of beheaded babies..., why would that be?
https://www.haaretz.com
Let's wait and see what the BBC has to say on the matter, in the meantime accusations of atrocities from both sides should be met with suspicion until conclusive evidence is provided in each instance.
Only a fool allows himself to be led by hatred.