The Canon of the Ethiopian Orthodox Tewahedo Church is wider than for most other Christian groups. The Ethiopian "narrower" Old Testament Canon includes the books found in the Septuagint accepted by other Orthodox Christians, in addition to Enoch, Jubilees, 1 Esdras and 2 Esdras, 3 books of Maccabees, and Psalm 151. However, the three books of the Maccabees are identical in title only, and quite different in content from those of the other Christian churches which include them. The order of the other books is somewhat different from other groups', as well. The Church also has a somewhat ill-defined "broader canon" that includes more books (Mikre-Sellassie 1993). All modern printed bibles restrict themselves to the narrower canon.
ETHIOPIAN ORTHODOX CANON
The Ethiopian Orthodix Church Old Testament canon has 54 books. Book order of the 54 books in the Ethiopian Old Testament canon:
Jubilees following 2 Chronicles
Enoch following Jubilees
3 Ezra (2 Esdras) following Nehemiah
4 Ezra (1 Esdras) following 3 Ezra
Tobit following 4 Ezra
Judith following Tobit
1, 2 & 3 Makabi, following Esther (Greek)
Psalms includes Psalm 151 follows Job
Proverbs is divided into 2 books called Messale (Proverbs) (1-24) and Tegsas (Reproof) (25-31)
Wisdom of Solomon (Wisdom of Jesus, Son of Sirach), following Reproof
Ecclesistes (Wisdom of Jesus, Son of Sirach), following Wisdom
Baruch following Jeremiah
Letter of Jeremiah following Lamentations
Rest of Baruch (Paralipomenon of Jeremiah) following Letter of Jeremiah
The longest Biblical canon belongs to the Ethiopian church. The New Testament includes the Shepherd and other books. Some manuscripts of the Ethiopian New Testament include the Epistle of Eusebius to Carpianus and the Eusebian Canons which were written by Eusebius, bishop of Caesarea (c. 260-c. 340).The Book of Enoch is included in the biblical canon only of the Oriental Orthodox churches of Ethiopia and Eritrea. However, the Epistle of Jude quotes the prophet, Enoch, by name, and some believe the use of this book appears in the four gospels and 1 Peter. The genuineness and inspiration of Enoch were believed in by the writer of the Epistle of Barnabas, Irenaeus, Tertullian and Clement of Alexandria, and much of the early church. The epistles of Paul and the gospels – show influences from the Book of Jubilees, which is part of the Ethiopian canon, as well as the Assumption of Moses and the Testaments of the Twelve Patriarchs, which are included in no biblical canon.
Do they read from any of these extra books during the Liturgy?
I know next to nothing about the Ethiopian Church except that they are an Oriental Orthodox Church granted autocephaly by the Coptic Church in 1959, that they have Jewish heritage back to the Queen of Sheba, that they were founded by the Ethiopian eunuch (I think), the rumors that they have the ark of the covenant and they make use of drums sometimes, and that they had really bad experiences with Jesuits, I think, in the 1600s.
I'd love to learn more.