FC SD VII - 73] Since a misunderstanding and dissension among some teachers of the Augsburg Confession also has occurred concerning consecration and the common rule, that nothing is a sacrament without the appointed use [or divinely instituted act], we have made a fraternal and unanimous declaration to one another also concerning this matter to the following purport, 74] namely, that not the word or work of any man produces the true presence of the body and blood of Christ in the Supper, whether it be the merit or recitation of the minister, or the eating and drinking or faith of the communicants; but all this should be ascribed alone to the power of Almighty God and the word, institution, and ordination of our Lord Jesus Christ.
75] For the true and almighty words of Jesus Christ which He spake at the first institution were efficacious not only at the first Supper, but they endure, are valid, operate, and are still efficacious [their force, power, and efficacy endure and avail even to the present], so that in all places where the Supper is celebrated according to the institution of Christ, and His words are used, the body and blood of Christ are truly present, distributed, and received, because of the power and efficacy of the words which Christ spake at the first Supper. For where His institution is observed and His words are spoken over the bread and cup [wine], and the consecrated bread and cup [wine] are distributed, Christ Himself, through the spoken words, is still efficacious by virtue of the first institution, through His word, which He wishes to be there repeated. 76] As Chrysostom says (in Serm. de Pass.) in his Sermon concerning the Passion: Christ Himself prepared this table and blesses it; for no man makes the bread and wine set before us the body and blood of Christ, but Christ Himself who was crucified for us. The words are spoken by the mouth of the priest, but by God's power and grace, by the word, where He speaks: "This is My body," the elements presented are consecrated in the Supper. And just as the declaration, Gen. 1, 28: "Be fruitful, and multiply, and replenish the earth," was spoken only once, but is ever efficacious in nature, so that it is fruitful and multiplies, so also this declaration ["This is My body; this is My blood"] was spoken once, but even to this day and to His advent it is efficacious, and works so that in the Supper of the Church His true body and blood are present.