Ignatius — Epistle to the Trallians 7
Be on your guard, therefore, against such persons. And this will be the case with you if you are not puffed up, and continue in intimate union with Jesus Christ our God, and the bishop, and the enactments of the apostles. He that is within the altar is pure, but he that is without is not pure; that is, he who does anything apart from the bishop, and presbytery, and deacons, such a man is not pure in his 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.