St. Benedict's Rule for Monasteries

If a brother is found to be obstinate, or disobedient, or proud, or murmuring, or habitually transgressing the Holy Rule in any point and contemptuous of the orders of his seniors, the latter shall admonish him secretly a first and a second time, as Our Lord commands. If he fails to amend, let him be given a public rebuke in front of the whole community. But if even then he does not reform, let him be placed under excommunication, provided that he understands the seriousness of that penalty; if he is perverse, however, let him undergo corporal punishment.