When you come to appear before me, who has required this at your hand, to trample my courts?
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Augustine of Hippo
AD 430
God seeks us, not what’s ours. Anyway, the Christian’s sacrifice is alms, or kindness to the poor. That is what makes God lenient toward sins. - "Sermon 42.1"
It is obvious that sacrifices were established as an instruction to inspire right living in the people and were not given as an end in themselves. When the people refused to do those works that were necessary in order to busy themselves with only sacrifices, God said that he would no longer accept the sacrifices.
The entire book of Leviticus offers laws that are very strict regarding sacrifices. Moreover, there are numerous laws concerning sacrifices scattered throughout the book of Deuteronomy, as well as other books. How then can God ask, “Who has required these things from your hands?” This is to teach us that God’s will was not to make laws in this way but that the people suffered from slothfulness in not abiding by this command. - "Commentary on Isaiah 1.4"
Now this is the spiritual victim which has set aside the earlier sacrifice.… The gospel teaches what God demands. “The hour is coming,” he says, “when the true worshipers will worship the Father in spirit and in truth.” … We are the true worshipers and true priests who, offering our prayer in the spirit, offer sacrifice in the spirit—that is, prayer—as a victim that is appropriate and acceptable to God; this is what he has demanded and what he has foreordained for himself. - "On Prayer 28"
As for the burdensome sacrifices and the troublesome scrupulousness of their ceremonies and oblations, no one should blame the Jews, as if God specially required them for himself.… But he should see in those sacrifices a careful provision on God’s part, which showed his wish to bind to his own religion a people who were prone to idolatry and transgression by that kind of services wherein consisted the superstition of that period. He did this in order to call them away from idolatry, while requesting sacrifices to be performed to himself, as if he desired that no sin should be committed in making idols. - "Against Marcion 18"
