Transubstantiation/consecration Question.

[BigJon16]

At what point during the consecration does does transubstantiation happen?

Is it the part where the priest says the "this is my body" etc etc, or, before that when he says something along the lines of "Lord, let your spirit come upon these gifts, so that it may become the Body and Blood of our savior, Jesus Christ."?

Or is it a combination of both the parts?

Or is it a completely different part altogether, that I am forgetting?



Thanks!

[cappie]

The Council of Trent said:[indent][i]But since Christ our Redeemer declared that to be truly His own body which He offered under the form of bread, it has, therefore, always been a firm belief in the Church of God, and this holy council now declares it anew, that by the consecration of the bread and wine a change is brought about of the whole substance of the bread into the substance of the body of Christ our Lord, and of the whole substance of the wine into the substance of His blood. This change the holy Catholic Church properly and appropriately calls transubstantiation.[/i]

This is from the Catechism
[b]1377[/b] The Eucharistic presence of Christ begins at the moment of the consecration and endures as long as the Eucharistic species subsist.

So Transubstantiation does occur at a particular instant (after the priest speaks the words of the consecration; cf. [url="http://www.newadvent.org/summa/4075.htm#article7"][i]Summa Theologiae[/i] IIIª q. 75 a. 7[/url]); the sacrificial nature of the Mass, however, cannot be reduced to a duration after a certain moment

Edited December 10, 2011 by cappie