The article develops a concept of “secular religiosity” to characterize “post-traditional” Jewish affiliation as an individual and private matter, which the sociologist Peter Berger casts as a “heretical imperative” to make autonomous, individual choices. The waning of the heteronomous authority of rabbinic Judaism, yielded theological and hermeneutic strategies to address the “secular religiosity” of individuals who sought to affirm distinctive Jewish spiritual and devotional practices. The article concludes by adumbrating two contrasting paradigmatic strategies exemplified by Franz Rosenzweig and Martin Buber respectively.