4 Inasmuch, then, as the Church offers with single-mindedness, her gift is justly reckoned a pure sacrifice with God. As Paul also says to the Philippians, “I am full, having received from Epaphroditus the things that were sent from you, the odour of a sweet smell, a sacrifice acceptable, pleasing to God.” For it behooves us to make an oblation to God, and in all things to be found grateful to God our Maker, in a pure mind, and in faith without hypocrisy, in well-grounded hope, in fervent love, offering the first-fruits of His own created things.
And the Church alone offers this pure oblation to the Creator, offering to Him, with giving of thanks, [the things taken] from His creation. But the Jews do not offer thus: for their hands are full of blood; for they have not received the Word, through whom it is offered to God. Nor, again, do any of the conventicles (synagogæ) of the heretics [offer this]. For some, by maintaining that the Father is different from the Creator, do, when they offer to Him what belongs to this creation of ours, set Him forth as being covetous of another's property, and desirous of what is not His own.
Those, again, who maintain that the things around us originated from apostasy, ignorance, and passion, do, while offering unto Him the fruits of ignorance, passion, and apostasy, sin against their Father, rather subjecting Him to insult than giving Him thanks. But how can they be consistent with themselves, [when they say] that the bread over which thanks have been given is the body of their Lord, and the cup His blood, if they do not call Himself the Son of the Creator of the world, that is, His Word, through whom the wood fructifies, and the fountains gush forth, and the earth gives “first the blade, then the ear, then the full grain in the ear.”
Source: Adversus haereses (New Advent)