שבתון שבת קדש לכם יהיה השביעי וביום מלאכה תעשה ימים ששת" (ב לה) "יומת מלאכה בו העשה כל ‘לה
Rashi explains (based on Mechilta Masechta d’Shabbata Ch. 1) that the reason the Torah once again writes another warning about keeping Shabbos before the commandment about the meleches haMishkan is to teach us that work on the Mishkan does not supersede Shabbos.
From the fact that building the Mishkan was forbidden on Shabbos, the Shem MiShmuel learned that the Mishkan was not needed on Shabbos, because the power of Shabbos is like the power of the Mikdash, as the hashra’as haShechinah that comes from the power of the Mikdash is present on Shabbos. That is how he explains our request in the piyut of Azamer Bishvachin, said on Friday night: ",יהא רעוא קמיה "דתשרי על עמיה– in other words, may it be Hashem’s Will that His Shechinah should dwell on Shabbos as it dwelled in the Bais Hamikdash.
Shem MiShmuel Vayeira 5671
