Правило 18
On the excommunication of bishops who were not accepted into the dioceses to which they were appointed, but who went to others and caused violence to their primates.
If bishops, who, after their installation, were not accepted in their assigned region, intend to invade other regions, oppress the bishops installed there and raise rebellions against them, such people should be excommunicated. If they want to sit in presbyteral places where they previously were presbyters, do not take this honor away from them. However, if they are at enmity with the bishops installed there, they will even be deprived of their presbyteral honor and expelled.
Greek original
Εἴ τινες ἐπίσκοποι κατασταθέντες, καὶ μὴ δεχθέντες ὑπὸ τῆς παροικίας ἐκείνης, εἰς ἣν ὠνομάσθησαν, ἑτέραις βούλοιντο παροικίαις ἐπιέναι, καὶ βιάζεσθαι τοὺς καθεστῶτας, καὶ στάσεις κινεῖν κατ᾽ αὐτῶν, τούτους ἀφορίζεσθαι. Ἐὰν μέν τοι βούλοιντο εἰς τὸ πρεσβυτέριον καθέζεσθαι, ἔνθα ἦσαν πρότερον πρεσβύτεροι, μὴ ἀποβάλλεσθαι αὐτοὺς τῆς τιμῆς· ἐὰν δὲ διαστασιάζωσι πρὸς τοὺς καθεστῶτας ἐκεῖ ἐπισκόπους, ἀφαιρεῖσθαι αὐτοὺς καὶ τὴν τιμὴν τοῦ πρεσβυτερίου, καὶ γίνεσθαι αὐτοὺς ἐκκηρύκτους.
Parallel canons
Ап.1436IВс.8IVВс.29Трул.37Антиох.1718Двукр.17Кир.1