Leviticus 22:19

Ye shall offer at your own will a male without blemish, of the beeves, of the sheep, or of the goats.

Ye shall offer at your own will - rather, to your being accepted.

A male without blemish. This law (Leviticus 1:3) is founded on a sense of natural propriety; and hence, the reasonableness of God's strong remonstrance with the worldly-minded Jews (Malachi 1:8).

23. That mayest thou offer ... The passage should be rendered thus. 'If thou offer it either for a free-will offering or for a vow, it shall not be accepted.' This sacrifice being required to be "without blemish," symbolically implied that the people of God were to dedicate themselves wholly, with sincere purpose of heart; and its being required to be 'perfect to be accepted,' led them typically to Him without whom fie sacrifice could be offered acceptable to God.