Moses does. And the people respond. They respond so generously that Moses is told, “The people are bringing more than enough for doing the work the Lord commanded to be done” (Ex. 36:5), and Moses has to say, Stop.
`During the whole time the Mishkan was being constructed, there were no complaints, no rebellions, no dissension. What all the signs and wonders failed to do, the construction of the Tabernacle succeeded in doing. It transformed the people. It turned them into a cohesive group. It gave them a sense of responsibility and identity.
Seen in this context, the story of the Tabernacle was the essential element in the birth of a nation. No wonder it is told at length; no surprise that it belongs to the book of Exodus; and there is nothing ephemeral about it. The Tabernacle did not last forever, but the lesson it taught did.
It is not what G-d does for us that transforms us, but what we do for G-d. A free society is best symbolized by the Tabernacle. It is the home we build together. It is only by becoming builders that we turn from subjects to citizens. We have to earn our freedom by what we give. It cannot be given to us as an unearned gift. It is what we do, not what is done to us, that makes us free. That is a lesson as true today as it was then.