Jewish Theology Unbound challenges the widespread misinterpretation of Judaism as a religion of law as opposed to theology. James A. Diamond provides close readings of the Bible, classical rabbinic texts, Jewish philosophers, and mystics from the ancient, medieval, and modern period, which communicate a profound Jewish philosophical theology on human nature, God, and the relationship between the two.

The study begins with an examination of questioning in the Hebrew Bible, demonstrating that what the Bible encourages is independent philosophical inquiry into how to situate oneself in the world ethically, spiritually, and teleologically. It explores such themes as the nature of God through the various names by which God is known in the Jewish intellectual tradition, love of others and of God, death, martyrdom, freedom, angels, the philosophical quest, the Holocaust, and the state of Israel, all in light of the Hebrew Bible and the way it is filtered through the rabbinic, philosophical, and mystical traditions.