Midrash su Esodo 38:29

Whence do we know this to be so? Moses went up Mount Sinai on the sixth day of Sivan, and remained there for forty days and forty nights. He stayed there another forty days, and then a final forty days, totaling one hundred and twenty days in all. Thus you find that it must have been on the Day of Atonement that he told Moses about the Temple, for it was on that day that they were forgiven. And on that day the Holy One, blessed be He, told them: Make Me a Sanctuary, that I may dwell therein, so that the nations might know that He had forgiven them for the episode of the golden calf. It was called the Sanctuary of the Testimony, for it bore witness to the nations of the world that the Holy One, blessed be He, dwelt within their Sanctuary.

These are the accounts of the tabernacle … and the bronze of the offering (Exod. 38:21, 29). The bronze of the offering (tenufah) refers to the bronze vessels given to a bride, for in Greek they call a bride nymphé.¹⁴A play on words: tenufah (“offering”) and nymphé, a Greek bride. You find that while the Israelites were making bricks in Egypt, Pharaoh decreed that they were not to sleep at home so that they would not have intercourse with their wives. R. Simeon the son of Halafta said: What did the Israelite women do? They would go to the Nile to draw water, and the Holy One, blessed be He, would fill their jugs with little fishes.¹⁵Small fishes arouse sexual desire (Berakhot 40a). They would (sell some), cook and prepare (the fish), and buy some wine (with the proceeds of the sale), and then bring it to their husbands in the fields, as it is said: In all manner of service in the field (Exod. 1:14). While the men were eating and drinking, the women would take out their mirrors and glance into them with their husbands. They would say: “I am more attractive than you,” and the men would reply: “I am handsomer than you.” In that way they would arose their sexual desires and become fruitful and multiply. The Holy One, blessed be He, caused them to conceive on the spot.