Q: I remember reading somewhere (GIRM?) that the priest is to share part of the host he has consecrated. Am I making this up?
I hear that at our seminary, they’re being told that even the concelebrants must have their own large host. Sigh…
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A: I usually cite GIRM 321 for this. The bread is to be fashioned in such a way that the priest “is truly able to break it into parts and distribute these to at least some of the faithful.” So, the instruction is for the bread to be made that way; it doesn’t really require the priest to share it that way—but that is the implication. The paragraph goes on to speak of the beauty of the sign of breaking bread.
It’s a small gesture when using a 3” presider’s host, but it does help appreciate one dimension of the Eucharist.
There’s no instruction that a concelebrant must have his own large host. In fact, that would go against the principle of GIRM 321.