Development of the New Testament canon and 3rd centuries Eusebius's "Ecclesiastical History" 6.38 says the Elchasai "made use of texts from every part of the Old Testament and the Gospels; it rejects the Apostle (Paul) entirely"; 4.29.5 says Tatian the Assyrian rejected Paul's Letters and Acts of the Apostles; 6.25 says Origen accepted 22 canonical books of the Hebrews plus Maccabees plus the four Gospels but Paul "did not so much as write to all the churches that he taught; and even to those to which he wrote he sent but a few lines." Between 140 and 220, both internal and external forces caused Proto-orthodox Christianity
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