Jamieson, Fausset and Brown on Exodus 35:20-21

20-21. all the congregation of Israel departed from the presence of Moses--No exciting harangues were made, nor had the people Bibles at home in which they could compare the requirements of their leader and see if these things were so. But they had no doubt as to his bearing to them the will of God, and they were impressed with so strong a sense of its being their duty, that they made a spontaneous offer of the best and most valuable treasures they possessed.