Leviticus 7:16

16But aif the sacrifice of his offering is a vow offering or a freewill offering, it shall be eaten on the day that he offers his sacrifice, and on the next day what remains of it shall be eaten.

Leviticus 22:18-23

18Speak to Aaron and his sons and all the people of Israel and say to them, bWhen any one of the house of Israel or of the sojourners in Israel presents a burnt offering as his offering, for any of their vows or freewill offerings that they offer to the Lord, 19if it is to be accepted for you it shall be a cmale without blemish, of the bulls or the sheep or the goats. 20 dYou shall not offer anything that has a blemish, for it will not be acceptable for you. 21And when anyone eoffers a sacrifice of peace offerings to the Lord fto fulfill a vow or as a freewill offering from the herd or from the flock, to be accepted it must be perfect; there shall be no blemish in it. 22Animals gblind or disabled or mutilated or having a discharge or han itch or scabs you shall not offer to the Lord or give them to the Lord as a food ioffering on the altar. 23You may present a bull or a lamb that has a part jtoo long or too short for a freewill offering, but for a vow offering it cannot be accepted.

Deuteronomy 12:11

11then to kthe place that the Lord your God will choose, to make his name dwell there, there you shall bring all that I command you: your burnt offerings and your sacrifices, lyour tithes and the contribution that you present, and all your finest vow offerings that you vow to the Lord.
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