§ 30.7. =The Didache or Teaching of the Twelve Apostles.=--The celebrated little treatise bearing the title Διδαχὴ κυρίου διὰ τῶν δώδεκα ἀποστόλων τοῖς ἔθνεσιν was discovered by Bryennius (then metropolitan of Serrä, now of Nicomedia) in the Jerusalem Codex, to which we also owe the perfect text of the two so-called Epistles of Clement, and it was edited by this scholar with prolegomena and notes in Greek, at Constantinople in 1883. It at once set in motion many learned pens in Germany, France, Holland, England, and North America.--Eusebius, who first expressly names it in his list of New Testament writings as τῶν ἀποστόλων αἱ λεγόμεναι διδαχαί, which Rufinus renders by _Doctrina quæ dicitur App._, places it in the closest connection with the Epistle of Barnabas among the ἀντιλεγόμενα νόθα (§ 36, 8). Four years later Athanasius ranks it as διδαχὴ καλουμένη τῶν ἀπ. along with the Shepherd of Hermas, giving it the first place, as a New Testament supplement corresponding to the Old Testament ἀναγινωσκόμενα (§ 59, 1). Clement of Alexandria quoting a passage from it uses the formula, ὑπὸ τῆς γραφῆς εἴρηται, and thus treats it as holy scripture. In Origen again no sort of reference to it has as yet been found. From the 39th Festival Epistle of Athanasius, A.D. 367, which ranks it, as we have just seen, as a New Testament supplement like the Old Testament Anaginoskomena, we know that it like these were used at Alexandria παρὰ τῶν πατέρων in the instruction of catechumens. In the East, according to Rufinus, when enumerating in his _Expos. Symb. Ap._ the Athanasian Anaginoskomena, we find alongside of Hermas, instead of the Didache, the “Two Ways,” _Duæ viæ vel Judicium secundum Petrum_. Jerome, too, in his _De vir. ill._, mentions among the pseudo-Petrine writings a _Judicium Petri_. We have here no doubt a Latin translation or recension of the first six chapters of the Didache beginning with the words: Ὅδοι δύο εἰσι, these two ways being the way of life and the way of death. The second title instead of the twelve Apostles names their spokesman Peter as the reputed author of the treatise. Soon after the time of Athanasius our tract passed out of the view of the Church Fathers, but it reappears in the Ecclesiastical Constitutions of the 4th century (§ 43, 4, 5), of which it formed the root and stem. The Didache itself, however, should not be ranked among the pseudepigraphs, for it never claims to have been written by the twelve Apostles or by their spokesman Peter.--Bryennius and others, from the intentional prominence given to the twelve Apostles in the title and from the legalistic moralizing spirit that pervades the book, felt themselves justified in seeking its origin in Jewish-Christian circles. But this moralizing character it shares with the other Gentile-Christian writings of the Post-Apostolic