Clement of Alexandria (180) puts into his list most of our canonical books, but regards several of them as of inferior value, among them Hebrews, Second John, and Jude. In the same list of inferior writings he includes "The Shepherd of Hermas," the "Epistle of Barnabas," and the "Apocalypse of Peter."
Tertullian (200) omits entirely James, Second Peter, and Third John, but includes among useful though not inspired books, Hebrews, Jude, "The Shepherd of Hermas," Second John, and Second Peter.
These are the greatest authorities of the first two centuries. No Christian teachers of that day were better informed or more trustworthy than these, and it will be seen that they were far from agreeing with one another or with our canon; that each one of them received as sacred some books which we do not possess, and rejected some which we receive.
Coming down into the third century, we find Origen (250), one of the great scholars, wrestling with the problem. He seems to have made three classes of the New Testament writings, the authentic, the non-authentic, and the doubtful. The authentic books are the Gospels, the Acts, the thirteen Epistles of Paul, and the Apocalypse; the non-authentic ones are "The Shepherd of Hermas," "The Epistle of Barnabas," and several other books not in our canon; and the doubtful ones are James, Jude, Second and Third John, and Second Peter. It will be seen that Origen admits none that are not in our collection, but that he is in doubt respecting some that are in it.
Facts like these are writ large over every page of the history of the early church. And yet we have eminent theological professors asserting that the canon of the New Testament was finally settled "during the first half of the second century, within fifty years after the death of the Apostle John." A more baseless statement could not be fabricated. It is from teachers of this class that we hear the most vehement outcries against the "Higher Criticism."
Eusebius, who died in 340, has a list agreeing substantially with that of Origen.
Cyril of Jerusalem (386) includes all of our books except the Apocalypse, and no others.
Athanasius (365) and Augustine (430) have lists identical with ours. This indicates a steady progress toward unanimity, and when the two great councils of Hippo and Carthage confirmed this judgment of the two great fathers last named, the question of the New Testament canon was practically settled. [Footnote: It is noted, however, that the reception of the doubtful books into the canon does not imply a recognition of their equality with the other books. The distinct admission of their inferiority was made by all the ecclesiastical authorities of that period. None of the early fathers believed that all these writings were equally inspired and equally authoritative.] Nevertheless, considerable independent judgment on the subject still seems to have been tolerated, and writings which we do not now receive were long included in the New Testament collection. The three oldest manuscripts of the Bible now in existence are the Sinaitic, the Vatican, and the Alexandrian Bibles, dating from the fourth and the fifth centuries. Of these the Sinaitic and the Alexandrian Bibles both include some of these doubtful books in the New Testament collection; the Sinai Bible has "The Epistle of Barnabas" and "The Shepherd of Hermas;" the Alexandrian Bible the Epistle of Clement and one of Athanasius. These old Bibles are clear witnesses to the fact that the contents of the New Testament were not clearly defined even so late as the fifth century. Indeed, there was always some freedom of opinion concerning this matter until the Reformation era. Then, of course, the Council of Trent fixed the canon of the New Testament as well as of the Old for all good Catholics; and the New Testament of the Catholics, unlike their Old Testament, is identical with our own.
The Protestants of that time were still in doubt about certain of the New Testament books. Luther, as every one knows, was inclined to reject the Epistle of James; he called it "a right strawy epistle." The letter to the Hebrews was a good book, but not apostolic; he put it in a subordinate class. Jude was a poor transcript of Second Peter, and he assigned that also to a lower place. "The Apocalypse," says Davidson, "he considered neither apostolic nor prophetic, but put it almost on a level with the Fourth Book of Esdras, which he spoke elsewhere of tossing into the Elbe." Luther's principle of judgment in many of these cases was quite too subjective; he carried the Protestant principle of private judgment to an extreme; I only quote his opinions to show with what freedom the strong men of the Reformation handled these questions of Biblical criticism.
Zwingli rejected the Apocalypse. Œcolampadius placed James, Jude, Second Peter, Second and Third John and the Apocalypse along with the Apocryphal books, on a lower level than the other New Testament Scriptures.