This article forms a critical reflection on the views of Spinoza, developed in the Tractatus Theologico-Politicus, on the role of the ‘ceremonial law’ in the moral life of ancient Hebrew culture. According to Spinoza, a merely external obedience to the ceremonial law should not be confused with the sense of obligation towards the moral Divine Law of ‘justice and charity’: only in this last one can true piety be found. The idea is defended that Spinoza’s critical attitude towards the Jewish ceremonial law should be understood against the larger background of his hermeneutics of superstition throughout the TTP. In the TTP superstition is unmasked as a form of undue adherence to a particular religious tradition and to merely outer ceremonies a...