John Calvin Commentary Leviticus 22:19

"that ye may be accepted, [ye shall offer] a male without blemish, of the bullocks, of the sheep, or of the goats." — Leviticus 22:19 (ASV)

“Unto your acceptance.” ²⁹⁴ Some indeed translate this “at your own will,” but the context forbids it. For Moses sometimes uses the word רצה, ratseh, which means “accepted,” in the same sense, and sometimes רצון, ratson, which can only refer to God’s favor, commonly called His “good pleasure.” Again, as he uses the compound word לרצנכם; leretsoncem, here, so he soon afterwards adds לרצון לכם, leretson lecem, where he declares that a blemished sacrifice would not be “unto their acceptance,” because it would be rejected by God.

Therefore, the sum is that if they desire their oblations to be approved by God, they must be careful that there is no defect in them. Still, if anyone chooses to think that God’s gratuitous favor is expressed by the word “good pleasure,” I willingly admit it, since our services only please God insofar as He, in His paternal indulgence, deigns to award them the value of which they are by no means worthy.

Nevertheless, let us learn in the meantime that we must not play with God, but that He must be so worshipped in integrity and sincerity of heart that our sacrifices may correspond with His good pleasure. For from this arises the careless profanation of His worship, because we do not sufficiently consider what is due to His perfection.

It is indeed certain that nothing can proceed from us that is pure in every respect. But let us at least aspire to what befits us, and let us mourn that our desires fall so far short of their aim, so that Christ may by His grace supply what is lacking in us. For it is unquestionable that, provided our sacrifices are the fruits of true regeneration, He washes out their blemishes with His own blood.

²⁹⁴ A.V. “At your own will,” “At your own will,” vide supra, p. 370.p. 370.