There can be little doubt that the didache was used as a manual for catechumens for several centuries.
On the other hand, it is wanting in the Supper prayers of the didache, unless c. 9.
The didache had already prescribed stated formulæ for prayer.
The didache and Shepherd of Hermas offer additional testimony on this point.
Then, the right of adding to the prescribed forms is restricted to the prophets, as in the didache.
It was applied to their successors, as we learn from the didache, xi.; Hermas, Sim.
(didache X., 'ημιν δε εχαρισω, δεσποτα, πνευματικην τροφην και ποτον και ζωην αιωνιον δια του παιδος σου).
But that the prophets altogether were in danger of being secularised is shewn in didache XI.
This passage, when compared with the didache, sheds light on another point.
This reminds us of the didache and has its parallel even in the first homily of Aphraates.