John D. Rayner - A graduate of Cambridge University and the Hebrew Union College . Rabbi Emeritus of the Liberal Jewish Synagogue, London , England and Lecturer in Liturgy and Codes at the Leo Baeck College.

Aviezer Ravitzky - Professor of Jewish Philosophy and Chairman of the Department of Jewish Studies at the Hebrew University , Jerusalem . Visiting Professor at Rice, Harvard , Pennsylvania , Yeshiva , and Brown Universities . Author of numerous books, including Messianism , Zionism and Jewish Religious Radicalism (1996).

Moshe Zemer - Director of the Freehof Institute of Progressive Halakhah; a founder of the Movement for Progressive Judaism in Israel ; founding rabbi of the Kedem Synagogue-Bet Daniel, Tel Aviv . Av Bet Din of the Israel Council of Progressive Rabbis, Senior Lecturer in Rabbinic at the Hebrew Union College , Jerusalem . Contributor of numerous articles on halakhah in the Israeli press and scientific journals; author of The Sane Halakhah[Hebrew ],(1993).

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