From a reader…
QUAERITUR:
Hello if I go to Saturday night anticipation mass and receive Holy Communion, and then go the following morning to Sunday mass, may I receive Holy Communion again? I have been told you cannot because it’s the “same Mass” and you can’t receive twice at the same Mass. Does anything change if one is Novus and one is Vetus? Thank you.
Yes. You may receive Saturday evening and Sunday morning.
Let’s review.
The 1983 Code of Canon Law says:
Can. 917 – Qui sanctissimam Eucharistiam iam recepit, potest eam iterum eadem die suscipere solummodo intra eucharisticam celebrationem cui participat, salvo praescripto Can. 921, § 2.
…
Someone who has already received the Most Holy Eucharist can receive it again (iterum) on the same day only within the Eucharistic celebration [i.e. Mass, not a Communion service] in which the person participates, with due regard for the prescription of can. 921 § 2.
That iterum does not mean “again and again”, but merely “again, one more time”.
Note also, it says “on the same day”. So, you scenario of different Masses on different days, a Saturday and a Sunday” doesn’t apply.
Also, that “Eucharistic celebration” in the canon does not mean just any service involving Communion. It means Mass. That was cleared up by the Holy See in an official response to a dubium, an officially proposed question.
That’s back when the Holy See answered dubia that weren’t crafted in house and then published as if they had been received from elsewhere.
So, say in the morning you attend a Novus Ordo Communion service wherein you receive Communion, or you went to a Mass in either Form. Later in the day you stumble into a church where Mass about to be celebrated and decided to stay for it. At that Mass you can receive Communion again (iterum). This would be even if you were, say, visiting a Maronite Catholic Church, or a Ukrainian Catholic Church and their Divine Liturgy was about to get under way. This applies to Novus Ordo and Vetus Ordo, too. It is indifferent.
However, if you were at Holy Mass in the morning and then stumbled into a Communion service at a priest-less parish in the afternoon, you could NOT receive again because a Communion Service isn’t Mass.
If you were at Mass in the morning and then in the afternoon when you were visiting your auntie in the hospital when the chaplain came, you could not receive even if the priest invited you to do so (which in my opinion he should not). However, if you stayed for another Mass at the hospital chapel immediately following, you would be able to receive.
Canon 917 tries to walk the line between promoting frequent reception of the Eucharist and a superstitious or excessive frequency, which – I can assure you – some people fall into.
The key here is that the second time must be during a Mass, and you may not enter the Mass at some late point merely in order to receive.
EXCEPTION:
Can. 921 § 2 says that if a person is in danger of death, he may receive Communion even it is not in the context of Mass. That is Viaticum.
If a person is dying, even if he has been to two Masses and received twice on the same day, he can receive Viaticum.











Today in the traditional form of the Roman Rite we have a wonderful Collect:




















