Religion changes over time. You have got its best proof in this religious row, itself: two factions of the 'same' Jewish religious belief fighting each other and considering superior over the other, for whatever their reasons. When law is religion-bound, injustice will always flare. Only completely secular states and law systems allow equality amongst all members of a society. Religion scarcely ever equalizes rights amongst people and instead shows its preferences, thus prompting unfairness. No state, anywhere, whenever, should be ruled by religious people. A new religion can surge in Israel as it has happened across the world many times (remember Christianity) and can grow exponentially until displacing Judaism. Should that happen then the Jewish law could be abolished and following the previous customs the law would then shift in favor of the new religion and, possibly, against Jews. How fair would then it be to Jewish people to know their country's law would be serving the new religious majority, but not them? There is NO possible way in which a religious state can be fair to every citizen.
U.S., allies conduct 31 air strikes in Syria and Iraq against ISIS militants (Reuters)