ויהי ביום כלות משה להקים את המשכן
Rashi observes that the pasuk does not write, “On the day Moshe erected…” This teaches us that, throughout the seven days of inauguration, Moshe Rabbeinu erected and dismantled the Mishkan. On the eighth day, he erected it without dismantling it. This is why the Torah writes, “On the day Moshe finished erecting…” It was on this auspicious day that he culminated his building. Why was it necessary for our quintessential leader to erect and dismantle the Mishkan repeatedly for seven days – only to erect it and not dismantle it on the eighth day? Why could he not have erected…