ROM 2:13

13 For it is not the Shomei HaTorah [(hearers of the Law of Moshe Rabbeinu)] who are the tzaddikim who are accounted to be YITZDAK IM HASHEM [(justified with G-d)]. It is the Shomrei HaTorah [(the keepers of the Torah)] who will be counted to be YITZDAK IM HASHEM.