http://www.earlychurch.org.uk/article_didache.html
Date
Scholars argue dates as late as the 4th century, but the consensus places it c.100 CE.
Some scholars have argued more recently for a date as early as 50 CE. that gives the Didache the widest range of dating estimates of any Christian book.
The Didache does not fir clearly into any period of liturgy or ministry for which we have documentation. Does it therefore belong to a period before such documentation? "This is the thesis advanced in the massive recent commentary by
J.-P. Audst who
concludes it was composed almost certainly in Antioch between 50 and 70."(3) The case must rest on the many indications of genuine primitiveness in the Didache which point to a stage in the life of the church that is still that of the NT period itself.
Aune points out that the apostles mentioned several times in the Didache (11:3,4,6) are not associated with specific factions, a fact that suggests they belonged to an early period(4). The prayers and thanksgiving are full of archaic terminology, echoing not only the servant (pais) Christology of the early speeches of Acts (Did.9:2f; 10:2f; Acts 3:13,26; 4:27,30) which Robinson calls "the earliest Christian liturgical sequence (Did.10:6; cf. 1 Corinthians 16:22-24)"(5).
In Did. 9:1-3 the cup precedes the bread, as in 1 Corinthians 10:16 and Luke 22:17-19. The regulations about food (Did. 6:3) presupposed a period and milieu where the dietary question is still genuinely posed. We are in the age of itinerant apostles, prophets and teachers (11-13), and at a "point of transition from the ministry of prophets and teachers to that of bishops and deacons"(6) where the former are not available for regular ministry in the local church (15:1f).
This transition is touched upon by Phil.1:1 and the Pastoral Epistles.
C.H. Turner recognised that a "date between 80 and 100 is as early as we are prepared to admit" but "it does not follow that so early a date (i.e. 60) is inevitable."(7)
Like the epistle of James, it is content to leave doctrinal issues on one side. There is no polemic - as in the Pastorals - against heterodox or Gnostic tendencies within the church, merely
a concern to maintain a practical distinction between Christians and Jews. The final chapter on eschatology aims much the same apocalyptic atmosphere as 1 & 2 Thessalonians (with which it has many parallels).
"It displays dominical and traditional OT materials which seem to have been produced by the early church between 40 and 70"(8). Yet in the Synoptics there is apparently
no attempt to fuse this material with predictions of the destruction of the temple or the fall of Jerusalem. This, it is argued,
suggests that it is composed either well before or well after these events.
There is little sign of the persecution or 'falling away' and with it the concern for consolidation in doctrine and structure, something
Robinson sees as characteristic of the 60's. He is inclined to date the Didache between 40 and 60 assuming that all the NT canon had been written before c.80. Summing up, J.A. Kliest is honest:
"If we admit an early date of composition, all the evidence is in favour of it; if we insist on a late date, we have to face a mass of conjectures and hypotheses."(9)
It appears that the pivotal point is 70 CE. The presuppositions of the scholar will determine which side he opts for: the majority cautiously hover around 100 CE.