Exodus 35:5

“Speak with the sons of Israel so that they take a contribution for Me; from every man whose heart is willing you shall take My contribution.

And everyone whose heart stirred him and everyone whose spirit was willing came and brought the contribution to Yahweh for the work of the tent of meeting and for all its service and for the holy garments.

Then Jehoash said to the priests, “All the money of the sacred things which is brought into the house of Yahweh, both the money for each numbered man—the money from each person’s assessment in the census—and all the money which any man’s heart prompts him to bring into the house of Yahweh,

Then Hezekiah answered and said, “Now that you have become ordained to Yahweh, approach and bring sacrifices and thank offerings to the house of Yahweh.” And the assembly brought sacrifices and thank offerings, and all those who were willing of heart brought burnt offerings.