Exodus 20:18

20:18 All the people were seeing the thundering and the lightning, and heard the sound of the horn, and saw the mountain smoking – and when the people saw it they trembled with fear and kept their distance.

Exodus 36:6

36:6 Moses instructed them to take his message throughout the camp, saying, “Let no man or woman do any more work for the offering for the sanctuary.” So the people were restrained from bringing any more.