18 How is it, by the way, that you use the words temple, altar, sacrifice, for the purpose of commending your own practices? If such things can be spoken of as properly belonging to true religion, they must constitute the true worship of the true God. And if there is such a thing as true sacrifice to the true God, which is implied in the expression divine honors, there must be some one true sacrifice of which the rest are imitations. On the one hand, we have the spurious imitations in the case of false and lying gods, that is, of devils, who proudly demand divine honors from their deluded votaries, as is or was the case in the temples and idols of the Gentiles.
On the other hand, we have the prophetic intimations of one most true sacrifice to be offered for the sins of all believers, as in the sacrifices enjoined by God on our fathers; along with which there was also the symbolic anointing typical of Christ, as the name Christ itself means anointed. The animal sacrifices, therefore, presumptuously claimed by devils, were an imitation of the true sacrifice which is due only to the one true God, and which Christ alone offered on His altar.
Thus the apostle says: "The sacrifices which the Gentiles offer, they offer to devils, and not to God." He does not find fault with sacrifices, but with offering to devils. The Hebrews, again, in their animal sacrifices, which they offered to God in many varied forms, suitably to the significance of the institution, typified the sacrifice offered by Christ. This sacrifice is also commemorated by Christians, in the sacred offering and participation of the body and blood of Christ.
The Manichæans understand neither the sinfulness of the Gentile sacrifices, nor the importance of the Hebrew sacrifices, nor the use of the ordinance of the Christian sacrifice. Their own errors are the offering they present to the devil who has deceived them. And thus they depart from the faith, giving heed to seducing spirits, and to doctrines of devils, speaking lies in hypocrisy.
Source: Reply to Faustus the Manichaean (New Advent)