Just as the priests who offer to the Lord are to be ceremonially and morally holy, so the animals offered to him are to be physically perfect, in order
Whatsoever hath a blemish, that shall ye not offer. The list of blemishes and malformations which exclude from the altar is given; they are such as deform the animal, and make it less valuable: blind, or broken, or maimed, or having a wen, or scurvy, or scabbed, ye shall not offer these unto the Lord, nor any animal that is bruised, or crushed, or broken, or cut, that is, castrated in any manner. The clause following the mention of castration?봭either shall ye make any offering thereof in your land?봪iterally translated, neither shall ye make in your land, probably forbids castration altogether, not merely the offering of castrated animals in sacrifice. The expression, Ye shall offer at your own will, should be understood, as before, for your acceptance (see note on Le Leviticus 2:1). Only one exception is made as to blemished offerings: an animal that hath any thing superfluous or lacking in his parts may be offered for a freewill offering, but not for a vow (for the distinction of these offerings, see note on Leviticus 2:1). These rules as to unblemished victims are to apply to the offerings of strangers as well as of Israelites.
Extreme youth is to be regarded as a blemish in an animal in the same way as other defects. During the young creature's first week of existence it is not considered as having arrived at the perfection of its individual and separate life, and therefore only from the eighth day and thenceforth it shall be accepted for an offering made by fire unto the Lord. Up to what ago an animal might be offered is not stated. Gideon is narrated as offering a bullock of seven years old ( 6:25).