Leviticus 22:19-21

¹⁹Ye shall offer at your own will a male without blemish of the beeves, of the sheep, or of the goats.

²⁰But whatever hath a blemish, that shall ye not offer: for it shall not be acceptable for you.

²¹And whoever offereth a sacrifice of peace-offerings to the LORD to accomplish his vow, or a free-will-offering in beeves, or sheep, it shall be perfect to be accepted: there shall be in it no blemish.