pharisees
There is not now ... nor has there ever been since the split into two kingdoms in the 'old testament' ... any single leader of the Jewish people. Without trying to be cute about it, it is completely accurate to say that the primacy of human leaders has always been de-emphasized in Judaism ... by the leaders themselves when they did exist ... and the point consistently hammered that the only leader of the Jewish people is the Creator of the Universe Himself.
The Jewish leaders that interpret God's will are called Mashiach.
The Kohenim (priests), however, they weren't leaders of the Jewish people, they were in charge of the Temple.
A Jewish "leader" is a Rabbi which means teacher.
The perform the wedding ceremony.
Israel
The major prophet who emphasized respect for the individual, concern for the poor, and obedience to God in Hebrew traditions was likely Isaiah. Isaiah's writings often focus on social justice, faithfulness to God, and the importance of helping the marginalized in society. His teachings have had a lasting impact on Jewish beliefs and practices.
The Jewish leaders whom you're asking about are called Rabbis. Each Rabbi may lead a synagogue (Jewish place of prayer) and/or a Jewish community.
The Rabbis and sages. See also:Important Jewish leaders, prophets and rabbis
Places of worship: synagogues. Leaders: rabbis.
The leaders of Judaism are Rabbis. The followers of Judaism are the Jewish people.
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