Ignatius — Epistle to the Smyrnaeans 8
See that you all follow the bishop, even as Jesus Christ does the Father, and the presbytery as you would the apostles; and reverence the deacons, as being the institution of God. Let no man do anything connected with the Church without the bishop. Let that be deemed a proper Eucharist, which is [administered] either by the bishop, or by one to whom he has entrusted it.
Wherever the bishop shall appear, there let the multitude [of the people] also be; even as, wherever Jesus Christ is, there is the Catholic Church. It is not lawful without the bishop either to baptize or to celebrate a love-feast; but whatsoever he shall approve of, that is also pleasing to God, so that everything that is done may be secure and valid.
Greek
Πάντες τῷ ἐπισκόπῳ ἀκολουθεῖτε, ὡς Ἰησοῦς Χριστὸς τῷ πατρί, καὶ τῷ πρεσβυτερίῳ ὡς τοῖς ἀποστόλοις. τοὺς δὲ διακόνους ἐντρέπεσθε ὡς θεοῦ ἐντολήν. μηδεὶς χωρὶς τοῦ ἐπισκόπου τι πρασσέτω τῶν ἀνηκόντων εἰς τὴν ἐκκλησίαν. ἐκείνη βεβαία εὐχαριστία ἡγείσθω, ἡ ὑπὸ ἐπίσκοπον οὖσα ἢ ᾧ ἄν αὐτὸς ἐπιτρέψῃ. ὅπου ἂν φανῇ ὁ ἐπίσκοπος, ἐκεῖ τὸ πλῆθος ἤτω, ὥσπερ ὅπου ἂν ᾖ Ἰησοῦς Χριστός, ἐκεῖ ἡ καθολικὴ ἐκκλησία. οὐκ ἐξόν ἐστιν χωρὶς τοῦ ἐπισκόπου οὔτε βαπτίζειν οὔτε ἀγάπην ποιεῖν: ἀλλ’ ὃ ἂν ἐκεῖνος δοκιμάσῃ, τοῦτο καὶ τῷ θεῷ εὐάρεστον, ἵνα ἀσφαλὲς ᾖ καὶ βέβαιον πᾶν ὃ πράσσετε.