Development of the New Testament canon a novelty in Irenaeus's time. "Against Heresies" 3.11.7 acknowledges that many heterodox Christians use only one gospel while 3.11.9 acknowledges that some use more than four. The success of Tatian's Diatessaron in about the same time period is "...a powerful indication that the fourfold Gospel contemporaneously sponsored by Irenaeus was not broadly, let alone universally, recognized." Irenaeus apparently quotes from 21 of the New Testament books and names the author he thought wrote the text. He mentions the four gospels, Acts, the Pauline epistles with the exception of Hebrews and Philemon, as well as the first epistle of Peter, and
Quotations from the Hebrew Bible in the New Testament of Moses. Other quotations are sometimes made directly from the Hebrew text (e.g. , , ). When the New Testament was written, the Old Testament was not divided into chapters and verses, and there is therefore no uniform standard for these quotes and the authors had to provide contextual references: Quotations from the Hebrew Bible in the New Testament There are in all two hundred and eighty-three direct quotations from the Hebrew Bible (Old Testament) in the New Testament. In about ninety instances, the Septuagint is literally quoted. In around eighty further instances, the quote is altered in some way.