What does the phrase "macharat hashabbat" mean? Many commentaries attempt to answer this question, which has important implications regarding the observance date of the holiday of Shavuot. However, by carefully examining the texts in Vayikra, we gain an understanding of the connection between Shavuot and the concept of Shabbat, signifying dependency on Hashem. We also gain deeper insights into the two aspects of meeting with Hashem - both in place and time. 

Additional References
Shemot 16, 22- 35; Shemot 29, 43-45
Yemei Iyun be-Tanakh - תש"ע