Leviticus 7:16

7:16 “‘If his offering is a votive or freewill sacrifice, it may be eaten on the day he presents his sacrifice, and also the leftovers from it may be eaten on the next day,

Leviticus 22:18-23

22:18 “Speak to Aaron, his sons, and all the Israelites and tell them, ‘When any man from the house of Israel or from the foreigners in Israel presents his offering for any of the votive or freewill offerings which they present to the Lord as a burnt offering, 22:19 if it is to be acceptable for your benefit it must be a flawless male from the cattle, sheep, or goats. 22:20 You must not present anything that has a flaw, because it will not be acceptable for your benefit. 22:21 If a man presents a peace offering sacrifice to the Lord for a special votive offering or for a freewill offering from the herd or the flock, it must be flawless to be acceptable; it must have no flaw.

22:22 “‘You must not present to the Lord something blind, or with a broken bone, or mutilated, or with a running sore, or with a festering eruption, or with a feverish rash. You must not give any of these as a gift on the altar to the Lord. 22:23 As for an ox or a sheep with a limb too long or stunted, you may present it as a freewill offering, but it will not be acceptable for a votive offering.

Deuteronomy 12:11

12:11 Then you must come to the place the Lord your God chooses for his name to reside, bringing everything I am commanding you – your burnt offerings, sacrifices, tithes, the personal offerings you have prepared, and all your choice votive offerings which you devote to him.