The moral argument in Judaism

The Jewish version of the moral argument differs in structure from its Christian and Islamic counterparts. Where Christian apologists typically run the argument abstractly — objective moral values exist, therefore God — Jewish ethical thought tends to begin with the specific: the covenant at Sinai, the obligations of halakha, the relationship between mitzvot (commandments) and human flourishing. The question is not whether morality can exist without God in general, but what moral life looks like as a response to the God of Israel specifically.

Hermann Cohen's Religion of Reason out of the Sources of Judaism (1919) is the most philosophically ambitious modern attempt. Cohen read Judaism as ethical monotheism par excellence, grounding moral universalism in the idea of the unique God without falling into either dogmatism or naïve consequentialism. Emmanuel Levinas went further: the encounter with the Other is, for Levinas, the primordial ethical moment — ethics is first philosophy, and God is the trace of the ethical encounter rather than its external justifier. These are not standard natural-theology moral arguments; they are sophisticated phenomenological inversions of the Christian pattern.

Within the halakhic tradition, the Rabbinic question 'is something forbidden because God forbade it, or did God forbid it because it is forbidden?' — the Jewish form of the Euthyphro dilemma — was addressed with characteristic nuance. The twentieth-century Orthodox philosopher Joseph B. Soloveitchik argued in Halakhic Man that Jewish ethics is not arbitrary divine command but the encounter of an ideal order with empirical reality through disciplined interpretation. Critics press the standard objections: the Torah commands genocide in Deuteronomy 20, endorses slavery, and prescribes death for adultery. The Jewish answer has historically been interpretive: read the text in dialogue with rabbinic tradition, which consistently narrowed, qualified, or functionally annulled the harshest commands.