Ignatius to the Magnesians

Therefore as the Lord did nothing without the Father, [being united with Him], either by Himself or by the Apostles, so neither do ye anything without the bishop and the presbyters. And attempt not to think anything right for yourselves apart from others: but let there be one prayer in common, one supplication, one mind, one hope, in love and in joy unblamable, which is Jesus Christ, than whom there is nothing better.

Ὥσπερ οὖν ὁ κύριος ἄνευ τοῦ πατρὸς οὐδὲν ἐποίησεν, ἡνωμένος ὤν, οὔτε δἰ ἑαυτοῦ οὔτε διὰ τῶν ἀποστόλων: οὕτως μηδὲ ὑμεῖς ἄνευ τοῦ ἐπισκόπου καὶ τῶν πρεσβυτέρων μηδὲν πράσσετε: μηδὲ πειράσητε εὔλογόν τι φαίνεσθαι ἰδίᾳ ὑμῖν, ἀλλ̓ ἐπὶ τὸ αὐτὸ μία προσευχή, μία δέησις, εἷς νοῦς, μία ἐλπὶς ἐν ἀγάπῃ, ἐν τῇ χαρᾷ τῇ ἀμώμῳ, ὅ ἐστιν Ἰησοῦς Χριστός, οὖ ἄμεινον οὐδέν ἐστιν.