Canon 5 is an important piece of evidence about the frequency of Eucharistic celebration in the early Church. It's interpretation, however, depends on the understanding of the phrase "sacrificium quotidianum". It can be translated "daily sacrifice" and in such case the canon implies that masses were celebrated daily in every church and all the clergy were supposed to attend. It is worth noting, however, that the presbyters are not obligated here to the daily celebration of the Eucharist. On the other hand it is not uncommon for "quotidianus" to mean "regular, usual, frequent". Daniel Callam supports this view and interprets the canon as a piece of legislation against the private gatherings of Priscillianists - in other words, the canon would deal with the problem where the clergy should attend the liturgical celebrations, and not how often (Callam 1984: 637).