Leviticus 22:21-23

New Revised Standard Version, Anglicised Catholic Edition

²¹ When anyone offers a sacrifice of well-being to the Lord, in fulfilment of a vow or as a freewill-offering, from the herd or from the flock, to be acceptable it must be perfect; there shall be no blemish in it. ²² Anything blind, or injured, or maimed, or having a discharge or an itch or scabs—these you shall not offer to the Lord or put any of them on the altar as offerings by fire to the Lord. ²³ An ox or a lamb that has a limb too long or too short you may present for a freewill-offering; but it will not be accepted for a vow.