Rabbinical authorities are religious leaders and scholars in Judaism who interpret Jewish law and tradition. They often hold the title of Rabbi and are responsible for guiding their communities in spiritual matters, teaching, and providing legal rulings based on Halakha, the collective body of Jewish law. These authorities can be found in various settings, including synagogues, schools, and community organizations. They may also engage in scholarly work, writing commentaries and responsa that address contemporary issues within the framework of Jewish law. Their interpretations help shape the practice and understanding of Judaism today.