Q: Should angels be mentioned in the Eucharistic Prayers on their memorial days or feasts? I mean, should they be mentioned in the place where the names of the saints are usually mentioned on their memorial days?
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A: I wouldn’t say they “should” be added. But I don’t see a problem with it if they are. The inclusion of the name of any saint in those few Eucharistic Prayers is optional.
Angels are included in litanies of the saints, so they are invoked as saints are.
But, of course, they get a shout-out in every preface.