 Judaism is considered by religious Jews to be the expression of what is sometimes also referred to as the law of what? 
Judaism: Judaism (originally from Hebrew , "Yehudah", "Judah"; via Latin and Greek) is an ancient monotheistic Abrahamic religion with the Torah as its foundational text. Mosaic covenant:  The establishment and stipulations of the Mosaic covenant are recorded in the first five books of the Hebrew Bible, which are traditionally attributed to Moses and collectively called the Torah, and this covenant is sometimes also referred to as the Law of Moses or Mosaic Law or the 613 Mitzvot.
i don't know