Categories of New Testament manuscripts text (i.e. the four Gospels combined into a single narrative). Categories of New Testament manuscripts New Testament manuscripts in Greek are categorized into five groups, according to a scheme introduced in 1981 by Kurt and Barbara Aland in "The text of the New Testament". The categories are based on how each manuscript relates to the various text-types. Generally speaking, earlier Alexandrian manuscripts are category I, while later Byzantine manuscripts are category V. Aland's method involved considering 1000 passages where the Byzantine text differs from non-Byzantine text. The Alands did not select their 1000 readings from all of the NT books;
Development of the Old Testament canon of the Catholic Church. All of these we also judge to be Canonical Books, and confess them to be Sacred Scripture. Not all books of the Old Testament are covered in the "Prophetologion", the official Old Testament lectionary: "Because the only exposure most Eastern Christians had to the Old Testament was from the readings during services, the Prophetologion can be called the Old Testament of the Byzantine Church." Development of the Old Testament canon The Old Testament is the first section of the two-part Christian Biblical canon; the second section is the New Testament. The Old Testament includes the books