Leviticus 22:21, 23

“ ‘If someone brings a fellowship offering to the LORD, either as payment for a special promise the person has made or as a special gift the person wants to give the LORD, it might be from the herd or from the flock. But it must be healthy, with nothing wrong with it, so that it will be accepted.

“ ‘If an ox or lamb is smaller than normal or is not perfectly formed, you may give it as a special gift to the LORD; it will be accepted. But it will not be accepted as payment for a special promise you have made.