Answer:
The answer is: The Great Rabbinate of Israel, or non-Jewish political authorities.
Step-by-step explanation:
From the Middle Ages the term "great rabbi" began to be used to refer to the main leader of the Jewish community, whether chosen by it, that is, The Great Rabbinate of Israel, is recognized by law as the supreme rabbinical authority and spiritual for Judaism in Israel. or designated by non-Jewish political authorities.
The answer is: The Great Rabbinate of Israel, or non-Jewish political authorities.