Behar, Section 1
1) (Vayikra 25:1) "And the L–rd spoke to Moses on Mount Sinai, saying": Why is shemitah (the section on the Sabbatical year) juxtaposed with Mount Sinai? Were not all the mitzvoth given at Sinai? (The purpose of the juxtaposition is to indicate that) just as the general rules and specific ordinances of shemitah were enunciated at Sinai, so, with all the mitzvoth.