You may present as a freewill offering an ox or sheep that has a deformed or stunted limb, but it is not acceptable in fulfillment of a vow.
Here are four laws concerning sacrifices: - I. Whatever was offered in sacrifice to God should be without blemish, otherwise it should not be accepted. This had often been mentioned in the particular institutions of the several sorts of offerings.
Commenting on Leviticus 22:17-33
Ye shall not offer unto the Lord that which bruised, or crushed, or broken, or cut,.... The Targum of Jonathan is, whose testicles are pressed and bruised, and whose nerves are corrupted and bruised, and so most Jewish writers interpret it: neither shall you make any offering thereof in your land; any offering of any sort, either burnt offering or peace offering, or any other...
that mayest thou offer, &c.--The passage should be rendered thus: "if thou offer it either for a freewill offering, or for a vow, it shall not be accepted." This sacrifice being required to be "without blemish" [Lev 22:19], symbolically implied that the people of God were to dedicate themselves wholly with sincere purposes of heart, and its being required to be "perfect to be accepted"...