Ignatius of Antioch, Epistle to the Magnesians 2.9
If those who lived in the old ways came to a new hope, no longer keeping the Sabbath but living according to the Lord's day, on which our life also dawned through him and through his death, a death some deny, through which mystery we received faith, and because of this we endure, so that we may be found disciples of Jesus Christ, our only teacher, then how will we be able to live without him? Even the prophets, who were his disciples in the Spirit, awaited him as their teacher. And because of this, the one whom they righteously awaited came and raised them from the dead.
Greek
Εἰ οὖν οἱ ἐν παλαιοῖς πράγμασιν ἀναστραφέντες εἰς καινότητα ἐλπίδος ἦλθον, μηκέτι σαββατίζοντες, ἀλλὰ κατὰ κυριακὴν ζῶντες, ἐν ᾗ καὶ ἡ ζωὴ ἡμῶν ἀνέτειλεν δἰ αὐτοῦ καὶ τοῦ θανάτου αὐτοῦ, ὅν τινες ἀρνοῦνται, δἰ οὗ μυστηρίου ἐλάβομεν τὸ πιστεύειν, καὶ διὰ τοῦτο ὑπομένομεν, ἵνα εὑρεθῶμεν μαθηταὶ Ἰησοῦ Χριστοῦ τοῦ μόνου διδασκάλου ἡμῶν:
πῶς ἡμεῖς δυνησόμεθα ζῆσαι χωρὶς αὐτοῦ, οὗ καὶ οἱ προφῆται μαθηταὶ ὄντες τῷ πνεύματι ὡς διδάσκαλον αὐτὸν προσεδόκων; καὶ διὰ τοῦτο, ὃν δικαίως ἀνέμενον, παρὼν ἤγειρεν αὐτοὺς ἐκ νεκρῶν.