'Free will' in the Bible

And if the sacrifice of his offering is a vow or free-will offering, in the day of his bringing near his sacrifice it is eaten; and on the morrow also the remnant of it is eaten;

'These ye prepare to Jehovah in your appointed seasons, apart from your vows, and your free-will offerings, for your burnt-offerings, and for your presents, and for your libations, and for your peace-offerings.'

and hast brought in thither your burnt-offerings, and your sacrifices, and your tithes, and the heave-offering of your hand, and your vows, and your free-will offerings, and the firstlings of your herd and of your flock;

thou art not able to eat within thy gates the tithe of thy corn, and of thy new wine, and thine oil, and the firstlings of thy herd and of thy flock, and any of thy vows which thou vowest, and thy free-will offerings, and heave-offering of thy hand;

and thou hast made the feast of weeks to Jehovah thy God, a tribute of a free-will offering of thy hand, which thou dost give, as Jehovah thy God doth bless thee.

And every one who is left, of any of the places where he is a sojourner, assist him do the men of his place with silver, and with gold, and with goods, and with beasts, along with a free-will offering for the house of God, that 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,

A shower of free-will gifts thou shakest out, O God. Thine inheritance, when it hath been weary, Thou hast established it.

Thy people are free-will gifts in the day of Thy strength, in the honours of holiness, From the womb, from the morning, Thou hast the dew of thy youth.

And when the prince maketh a free-will burnt-offering, or free-will peace-offerings, to Jehovah, then he hath opened for himself the gate that is looking eastward, and he hath made his burnt-offering and his peace-offerings as he doth in the day of rest, and he hath gone out, and he hath shut the gate after his going out.