The Prayer after Communion for Mass on the 19th Sunday of the Year very simply teases out a very important principle of the sacramental life.
May the communion in your Sacrament
that we have consumed, save us, O Lord,
and confirm us in the light of your truth.
Through Christ our Lord.
The Latin tag ex opere operato describes one aspect of sacraments: that which is necessary for their being ‘real’. Ex opere operato or ‘from the work worked’ focuses on the authentic performance of the sacrament, especially by its minister: that he (and usually it is he) has done that which Christ intended and has gift to the Church. For example that baptism has been performed using water and ‘in the name of the Father, Son and Holy Sprit; or that Mass has been celebrated by an ordained minister with the right intention, and using bread and wine. This is important…
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