According to my memory, the wt has claimed that some of the apostles helped decide the canon at a place called jamnia in 90ce. However, i am unable to find a reference that includes any apostles at jamnia.
*** it-1 pp. 407-408 Canon ***
Canonicity of a book therefore does not rest in whole or in part on whether some council, committee, or community accepts or rejects it. The voice of such noninspired men is valuable only as witness to what God himself has already done through his accredited representatives.
The exact number of books in the Hebrew Scriptures is not important (whether a certain two are combined or left separated), nor is the particular order in which they follow one another, since the books remained as separate rolls long after the canon was closed. Ancient catalogs vary in the order the books are listed, as, for example, one listing places Isaiah after the book of Ezekiel. What is most important, however, is what books are included. In reality, only those books now in the canon have any solid claim for canonicity. From ancient times efforts to include other writings have been resisted. Two Jewish councils held at Yavne or Jamnia, a little S of Joppa, about 90 and 118 C.E. respectively, when discussing the Hebrew Scriptures, expressly excluded all Apocryphal writings.
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It's vague though, on exactly who was there. Just says 'jews'. It then lists a bunch of names of false christians who accepted what was supposedly decided at jamnia.
*** it-1 p. 409 Canon ***
We read that “near the close of the 1st cent., Clement bishop of Rome was acquainted with Paul’s letter to the church at Corinth. After him, the letters of both Ignatius bishop of Antioch and Polycarp bishop of Smyrna attest the dissemination of the Pauline letters by the second decade of the 2nd century.” (The International Standard Bible Encyclopedia, edited by G. W. Bromiley, 1979, Vol. 1, p. 603) These were all early writers—Clement of Rome (30?-100? C.E.), Polycarp (69?-155? C.E.), and Ignatius of Antioch (late 1st and early 2nd centuries C.E.)—who wove in quotations and extracts from various books of the Christian Greek Scriptures, showing their acquaintance with such canonical writings.
Justin Martyr (died c. 165 C.E.) in his “Dialogue With Trypho, a Jew” (XLIX), used the expression “it is written” when quoting from Matthew, in the same way the Gospels themselves do when referring to the Hebrew Scriptures. The same is also true in an earlier anonymous work, “The Epistle of Barnabas” (IV). Justin Martyr in “The First Apology” (LXVI, LXVII) calls the “memoirs of the apostles” “Gospels.”—The Ante-Nicene Fathers, Vol. I, pp. 220, 139, 185, 186.
Theophilus of Antioch (2nd century C.E.) declared: “Concerning the righteousness which the law enjoined, confirmatory utterances are found both with the prophets and in the Gospels, because they all spoke inspired by one Spirit of God.” Theophilus then uses such expressions as ‘says the Gospel’ (quoting Mt 5:28, 32, 44, 46; 6:3) and “the divine word gives us instructions” (quoting 1Ti 2:2 and Ro 13:7, 8).—The Ante-Nicene Fathers, 1962, Vol. II, pp. 114, 115, “Theophilus to Autolycus” (XII, XIII).
By the end of the second century there was no question but that the canon of the Christian Greek Scriptures was closed, and we find such ones as Irenaeus, Clement of Alexandria, and Tertullian recognizing the writings comprising the Christian Scriptures as carrying authority equal to that of the Hebrew Scriptures.
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