Midrash sobre Êxodo 40:2

... Another explanation. “And all the work that king Solomon had wrought in the house of the Lord was finished.” (Melachim I 7:51) What does ‘all the work’ mean? It was built by itself, rising and floating up – thus it does not say when the house was built, but rather “And the house, when it was in building…” (Melachim I 6:7) “…was built of stone finished at the quarry (masa)…” (ibid.) What does ‘finished at the quarry’ (masa nivne) mean? R’ Brechia said: the stone picked itself up (nosah atzma), rose up and was built by itself. This is what Shlomo said in his song “I have surely built You a house to dwell in…” (Melachim I 8:13) He says ‘I have surely built’, meaning ‘I built a building and the stones rose up and flew into place themselves’. If you are shocked that the Holy One would do such a thing for a single righteous person, “And a stone was brought and placed on the mouth of the pit…” (Daniel 6:18) And where did they get a rock in Bavel? Our Rabbis said that it rolled all the way from the land of Israel and came in an instant. So if the Holy One did such a thing for flesh and blood, are you surprised that He would do so for the building of a house to the Holy One?

(Exod. 39:33:) AND THEY BROUGHT THE TABERNACLE UNTO MOSES…. This text is related (to Ps. 31:19 [18]): LET LYING LIPS BE DUMB THAT SPEAK HAUGHTILY AGAINST THE RIGHTEOUS. <The verse > speaks about Moses.²²Exod. R. 52:2. When the Holy One told him to make [a tabernacle], he immediately told them (in Exod. 35:5): TAKE FROM AMONG YOU AN OFFERING FOR THE LORD. So Moses was occupied with the Tabernacle. R. Hanina said: He was occupied with the Tabernacle for six months. For three months they made it, and for three months they had it folded away. Nevertheless they murmured about it and said: See, the Tabernacle is made. Did he not say that he would have his Divine Presence dwell with us? But the Holy One had intended the Tabernacle to go up in the month that our father Abraham had been told the good news about Isaac. He only acted when the month arrived.²³Cf. Tanh., Exod. 11:11, for a longer version. The Holy One said to him (in Exod. 40:2): ON THE FIRST DAY OF THE FIRST MONTH [YOU SHALL SET UP THE TABERNACLE OF THE TESTIMONY]. At that time the Holy One said (in Ps. 31:19 [18]): LET LYING LIPS BE DUMB THAT SPEAK HAUGHTILY AGAINST THE RIGHTEOUS. The very ones who were murmuring against the Tabernacle, began to carry it, with each and every one of them joining in the work, as stated (in Exod. 39:33): AND THEY BROUGHT THE TABERNACLE UNTO MOSES.

How many months were required to complete the work of the Tabernacle? R. Samuel the son of Nahman held that the work of the Tabernacle was completed in three months, Tishri, Marheshvan, and Kislev, and it remained unassembled through Tevet, Shevat, and Adar. It finally was erected on the first day of Nisan, as it is said: On the first day of the first month shalt thou rear up the Tabernacle of the Tent of Meeting (Exod. 40:2). R. Hanina held: The work on the Tabernacle was completed by the first day of Adar. Why? Because the work that can be accomplished on one day in the summer is equal to two days work in the winter.

This is one of the three things to which Moses devoted himself: the law, judgeships and Israel. R. Hiyya the son of Yosé said: Moses also was deeply involved in the building of the Tabernacle. And it is called by his name. R. Hiyya the son of Yosé said: Throughout the seven days of consecration, Moses took apart the Tabernacle twice each day and then assembled it. The elder R. Hiyya said: He did it three times each day, for it is said: Thou shalt rear up (Exod. 40:1), The Tabernacle was reared up (ibid., v. 17), and Moses reared up the Tabernacle (ibid., v. 18).

... ….R’ Chanina said - on the twenty-fifth of Kislev the work of the tabernacle was completed, but it was left folded up until Nisan, as it is written "On the day of the first month, on the first of the month, you shall set up the Mishkan of the Tent of Meeting.” (Shemot 40:2) Israel were murmuring against Moshe saying ‘why wasn’t it erected immediately, maybe some flaw happened to it?’ The Holy One intended to mingle the joy of the tabernacle with the month in which Yitzchak was born, as it says “…knead and make cakes,” (Bereshit 18:6) and they said to him “…At the appointed time, I will return to you, at this time next year…” (Bereshit 18:14) Now because of this the month of Kislev, in which the work of the tabernacle was completed, lost out. The Holy One said ‘it is incumbent upon Me to make restitution.’ What restitution did the Holy One make? The rededication of the Temple by the Hasmoneans, and so too the Holy One will compensate Marcheshvan in the future.