Leviticus 22:18-22

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 sojourners in Israel, that offereth his oblation, whether it be any of their vows, or any of their freewill-offerings, which they offer unto Jehovah for a burnt-offering; that ye may be accepted, ye shall offer a male without blemish, of the bullocks, of the sheep, or of the goats. But whatsoever hath a blemish, that shall ye not offer: for it shall not be acceptable for you. And 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. Blind, or broken, or maimed, or having a wen, or scurvy, or scabbed, ye shall not offer these unto Jehovah, nor make an offering by fire of them upon the altar unto Jehovah.