“Hashem called to Moshe…” (Vayikra 1:1)
The Medrash Rabbah comments on the pasuk, “Hashem called to Moshe” with a parable. There once was a king who commanded his servant to build him a magnificent palace. The servant fulfilled the king’s order and constructed an impressive palace that was lavishly decorated and beautifully furnished. The servant engraved the king’s name and royal emblem on all the pillars of the palace and on all the furnishings and vessels in the palace. When the king entered his palace, he was overwhelmed by its beauty. Then he was surprised and delighted to see that his name and emblem had been engraved on all the pillars and vessels.
My loyal servant, thought the king, has gone to so much effort just to please me. Yet here I am, sitting in my glorious palace, while he sits in his chamber in the courtyard – that’s not very nice of me. “Summon myservant,” ordered the king, “and he shall sit together with me in my palace!”
Rabbi Yisroel Bronstein explains: So, it was with Moshe Rabbeinu and the Mishkan (Tabernacle), the Medrash Rabbah writes that Moshe erected the Mishkan and all its vessels, and on each item, he marked: “As Hashem commanded Moshe.” Hashem said: “My servant Moshe has displayed so much honor toward Me, for he has set My Name on each and every part of the Mishkan. Should he now be left outside?” Immediately, “He called to Moshe.”
