'Freewill Offerings' in the Bible

"Speak to Aaron and to his sons and to all the {Israelites}, and say to them, 'Anyone from the house of Israel or from the alien in Israel who presents his offering for any of their vows or for any of their freewill offerings that they present to Yahweh as a burnt offering,

{besides} Yahweh's Sabbaths and {besides} your gifts and {besides} your vows and {besides} all your freewill offerings that you give to Yahweh.

" 'You will present these to Yahweh at your appointed time, in addition to your vows and your freewill offerings, for your burnt offerings and for you grain offerings and for your libations and for your fellowship offerings.'"

And you shall bring there your burnt offerings and your sacrifices and your tithes and {your donations} and your votive gifts and your freewill offerings and the firstling of your herd and your flock.

Now Kore the son of Imlah, the Levite, the gatekeeper of the east gate [was] over the freewill offerings of God, to give offerings to Yahweh and the most holy things.

When [some] of the heads of {families} came to the house of Yahweh that [is] in Jerusalem, they gave freewill offerings for the house of God to erect it on its place.

and all of the silver and gold that you will find in the whole province of Babylonia, with the freewill offerings of the people and the priests giving willingly for the house of their God in Jerusalem.

Please accept the freewill offerings of my mouth, O Yahweh, and teach me your ordinances.

And bring a thank offering of unleavened bread, and proclaim freewill offerings, pronounce them, for so you love [to do], O {people} of Israel," [is] the declaration of my Lord Yahweh.