Ignatius — Epistle to the Trallians 7
So be on your guard against such people. And this will hold true for you if you are not puffed up with pride, and if you stay inseparable from God, Jesus Christ, and from the bishop and the commands of the apostles.
Whoever is inside the altar's sanctuary is clean; whoever is outside the sanctuary is not clean. That is, whoever does anything apart from the bishop, the presbytery, and the deacons does not have a clean conscience.
Greek
Φυλάττεσθε οὖν τοὺς τοιούτους. τοῦτο δὲ ἔσται ὑμῖν μὴ φυσιουμένοις καὶ οὖσιν ἀχωρίστοις θεοῦ Ἰησοῦ Χριστοῦ καὶ τοῦ ἐπισκόπου καὶ τῶν διαταγμάτων τῶν ἀποστόλων.
ὁ ἐντὸς θυσιαστηρίου ὢν καθαρός ἐστιν: ὁ δὲ ἐκτὸς θυσιαστηρίου ὤν οὐ καθαρός ἐστιν. τοῦτ̓ ἔστιν, ὁ χωρὶς ἐπισκόπου καὶ πρεσβυτερίου καὶ διακόνων πράσσων τι, οὗτος οὐ καθαρός ἐστιν τῇ συνειδήσει.