Augustine of Hippo

[The pagans say, "The Christians] censure the ceremonies of sacrifice, the victims, incense and the rest, which are used in temple worship. Yet the same ceremonies of sacrifice were originated by themselves or by the god they worship, in primitive times, when a god was assumed to need their offerings of first fruits." This question is evidently derived from that passage in our Scriptures that tells of Cain making an offering to God of the fruits of the earth and Abel of the firstlings of his flocks. We answer that the conclusion to be drawn from it is that sacrifice is a very ancient custom, because our true and sacred Books warn us that it is not to be offered except to the one true God. But God does not need sacrifices, as is most clearly expressed in the same sacred Books: "I said to the Lord, thou art my God, for thou hast no need of my goods," because in accepting or refusing or receiving them he is looking only to man's good. God does not derive any benefit from our worship, but we do.