Speak unto the children of Israel that they bring me an offering — This offering was to be given willingly, and with the heart. It was not prescribed to them what or how much they must give, but it was left to their generosity, that they might shew their good — will to the house of God, and the offices thereof.
Related Commentaries of Exodus 25:2
Exodus 25:2
2 Speak unto the children of Israel, that they bring me an offering: of every man that giveth it willingly with his heart ye shall take my offering.