Leviticus 22:19-21

19that ye may be accepted, ye shall offer a male without blemish, of the bullocks, of the sheep, or of the goats. 20But whatsoever hath a blemish, that shall ye not offer: for it shall not be acceptable for you. 21And whosoever offereth a sacrifice of peace-offerings unto Jehovah 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.