'Free will' in the Bible

and you make an offering by fire to the Lord from the herd or from the flock (whether a burnt offering or a sacrifice for discharging a vow or as a freewill offering or in your solemn feasts) to create a pleasing aroma to the Lord,

"'These things you must present to the Lord at your appointed times, in addition to your vows and your freewill offerings, as your burnt offerings, your grain offerings, your drink offerings, and your peace offerings.'"