Leviticus 22:18-21

ERV(i) 18 Speak unto Aaron, and to his sons, and unto all the children of Israel, and say unto them, Whosoever he be of the house of Israel, or of the strangers in Israel, that offereth his oblation, whether it be any of their vows, or any of their freewill offerings, which they offer unto the LORD for a burnt offering; 19 that ye may be accepted, [ye shall offer] a male without blemish, of the beeves, of the sheep, or of the goats. 20 But whatsoever hath a blemish, that shall ye not offer: for it shall not be acceptable for you. 21 And whosoever offereth a sacrifice of peace offerings unto the LORD to accomplish a vow, or for a freewill offering, of the herd or of the flock, it shall be perfect to be accepted; there shall be no blemish therein.