Leviticus 22:20-22

You shall not offer anything which has a blemish, because it will not be accepted for you. [1 Pet 1:19] Whoever offers a sacrifice of peace offerings to the LORD to fulfill a special vow to the LORD or as a freewill offering from the herd or from the flock, it must be perfect to be accepted; there shall be no blemish in it. Animals that are blind or fractured or mutilated, or have a sore or a running wound or an itch or scabs, you shall not offer to the LORD nor make an offering of them by fire on the altar to the LORD.