Today, August 1, in the Byzantine Catholic Church,is the day that we bless water. So after the Divine Liturgy, we had some water blessed.
Also in our rite we drink the water after it is blessed. I am sure the power of the blessing of water is enhanced since we drank it after the Liturgy was over.
I believe that all holy water is good—water blessed at easter has more prayers said over it then if the priest makes a sign of the cross over it. I believe that the priest can use the ritual that he uses at easter to bless the water at anytime.
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