Правило 50 Василия Великого

There is no law against trigamy: therefore a third marriage is not consummated by law. We look at such deeds as uncleanness in the church, but we do not subject them to public condemnation, as being better than dissolute fornication. (Neokes. 2; Basil Vel. 4, 80). From this rule it is clear that Amphilochius was not satisfied with Basil the Great’s answer about a third marriage (right 4), which is why he asked him about it a second time. Saint Basil, in his present rule, answers him that there is no law that would permit a third marriage, of course, church law (i.e. rules), for the regulations on this of civil law (νόμου πολιτικού παλαιού) have long existed; and just as in his 4th rule he called the third marriage κεκολασμένην πορνείαν and likened it to polygamy, so here, in this rule, he repeats the same thought, and calls the third marriage uncleanness in the church (ρυπάσματα τής εκκλησίας). And since, in any case, the third marriage was widespread in society, so that, in order to avoid greater evil, the church was forced to tolerate it, Saint Basil says that persons entering into a third marriage should not be subjected to public church punishments, but to a five-year penance (Rule 4), allowing them to pray in church together with the faithful. And Saint Basil prescribes this because he considers a third marriage to be better than dissolute fornication, i.e. It is better to allow this person to enter into a third marriage than to satisfy his passion by communicating with different women. Regarding other things, see the interpretation of 4 rules of this holy father. You might be interested in: