Ignatius of Antioch, Epistle to the Magnesians 2.13
Make every effort, then, to be established in the teachings of the Lord and the apostles, so that you may prosper in everything you do, in flesh and spirit, in faith and love, in the Son and the Father and in the Spirit, in beginning and in end, together with your most worthy bishop and the well-woven spiritual crown of your council of elders and the deacons who serve according to God.
Be subject to the bishop and to one another, as Jesus Christ was subject to the Father and the apostles were subject to Christ and to the Father, so that there may be a unity that is both fleshly and spiritual.
Greek
Σπουδάζετε οὖν βεβαιωθῆναι ἐν τοῖς δόγμασιν τοῦ κυρίου καὶ τῶν ἀποστόλων, ἵνα πάντα, ὅσα ποιεῖτε, κατευοδωθῆτε σαρκὶ καὶ πνεύματι, πίστει καὶ ἀγάπῃ, ἐν υἱῷ καὶ πατρὶ καὶ ἐν πνεύματι, ἐν ἀρχῇ καὶ ἐν τέλει, μετὰ τοῦ ἀξιοπρεπεστάτου ἐπισκόπου ὑμῶν καὶ ἀξιοπλόκου πνευματικοῦ στεφάνου τοῦ πρεσβυτερίου ὑμῶν καὶ τῶν κατὰ θεὸν διακόνων.
ὑποτάγητε τῷ ἐπισκόπῳ καὶ ἀλλήλοις, ὡς Ἰησοῦς Χριστὸς τῷ πατρὶ καὶ οἱ ἀπόστολοι τῷ Χριστῷ καὶ τῷ πατρὶ ἵνα ἕνωσις ᾖ σαρκική τε καὶ πνευματική.