'Willingly' in the Bible

and all those round about them have strengthened them with their hands, with vessels of silver, with gold, with goods, and with beasts, and with precious things, apart from all that hath been offered willingly.

And some of the heads of the fathers in their coming in to the house of Jehovah that is in Jerusalem, have offered willingly for the house of God, to establish it on its base;

and after this a continual burnt-offering, and for new moons, and for all appointed seasons of Jehovah that are sanctified; and for every one who is willingly offering a willing-offering to Jehovah.

and to carry silver and gold that the king and his counsellors willingly offered to the God of Israel, whose tabernacle is in Jerusalem,

and all the silver and gold that thou findest in all the province of Babylon, with the free-will offerings of the people, and of the priests, offering willingly, for the house of their God that is in Jerusalem,