The paper focuses on two 'faces' of Levinas' Judaism. First, the author mentions Levinas' significant biographic moments to suggest how rich and deep were the sources that influenced him from his early childhood: Latvian Judaism represented especially by the so called Musar movement, Russian secondary school, university education in France and Germany and importance of Alliance Israelite Universelle. Next, the authoress analyses 'traditional' and 'extra-traditional' aspects of Levinas' thought. She concludes that Levinas' Judaism conserves the traditional (actual and modern, nevertheless) reading of Bible as well as Talmud, while adopting the Greek methods of approaching philosophical texts. Theses multiple aspects of Levinas' Judaism do not simply stand in juxtaposition, but make an original synthesis.