EXOD293 It is also a mitzvah for one to go beyond the letter of the law, as the pasuk says [this verse], "[Inform them of …] the deeds that they shall do." Our Sages, z"l, said (Bava Metzia 30b), "This is a reference to [one's requirement to] go beyond the letter of the law." There are many ways in which this mitzvah may turn out to be of the more weighty mitzvos--all within the context of [the application of] the law--as our Sages, z"l, said (ibid.), "Yerushalayim was destroyed only as a result of their basing their words on the letter of the law, instead of going beyond it."