The motif of secret, crypto-Judaism has a history that reaches further back into the theological tradition. It no doubt structurally arises from or closely related to the epistemo-political challenges posed by the unworldliness and absolutely inner being of faith, which in the political or inter-subjective dimension immediately raises the question of evidence. The question of evidence, i.e., for the invisible faith, becomes acute in the case of conversion, where the basic premise is the initial absence of faith. Paradoxically, conversion is consequently the establishment of the convert’s fundamental faithlessness, of her originally non-Christian element, which the convert, in the very same act of conversion, claims no longer exists. It is easy to see the conceptual constellation that would present the convert as structural deception. At the Iberian threshold of modernity, in the face of mass Jewish conversion and assimilation, this paradox appeared in the image of the “new Christians”, the marranos, structurally suspected to be crypto-Jews, to the effect that the ultimate evidence of faith was a certificate of limpieza de sangre, “purity of blood”. This paper will follow the historian Yosef HayimYerushalmi in tracing the conceptual link between the Inquisition’s notion of crypto-Jews and the racialized figure of the Jew in modern anti-Semitism.
