Leviticus 22:20-22

20You must not present anything with a defect, because it will not be accepted on your behalf.

21When a man presents a peace offering to the LORD from the herd or flock to fulfill a vow or as a freewill offering, it must be without blemish or defect to be acceptable. 22You are not to present to the LORD any animal that is blind, injured, or maimed, or anything with a running sore, a festering rash, or a scab; you must not put any of these on the altar as a food offering to the LORD.