Canon 8

1Abṭelis, 8. If a bishop, presbyter, deacon, or any member of the church does not offer and partake of the Eucharist with the people at the time when the liturgy is being celebrated, let there be a reason of illness or necessity; but if there is no such reason, let them be removed from their office. If they do otherwise, let them be punished and expelled from the people, for they have become a stumbling block and a cause of offense to many, and they cause the priests who do not sanctify the Eucharist to be regarded as those who do not sanctify with a pure conscience and right faith, as it is written in the tradition.