The first 6 books are based on the Didascalia Apostolorum [1], a lost treatise of the third century, of Greek origin, which is known through Syriac versions. The 7th book is based on the Didache. The 8th book is a mixed compilation. The introductory chapters (i-ii) have for their foundation a treatise entitled "Teaching of the Holy Apostles concerning Gifts", possibly a lost work of Hippolytus. The 3rd chapter appears to be a work of the compiler. Chapters (iv-xlvi) present difficulties the varied solution of which divides scholars as to its sources. The last chapter (xlvii) contains the Canons of the Apostles said to be from an apostolic Council at Antioch and later approved by the Orthodox Quinisext Council in 692 but rejected by Pope Constantine. Canon #85 [2] is this list of canonical