From:
Authorship of the Epistle to the Hebrews - Wikipedia,
"
Ancient views
The
Epistle to the Hebrews was included in the
collected writings of Paul from a very early date. For example, the late second-century or early third-century codex
46, a volume of Paul's general epistles, includes Hebrews immediately after
Romans.
[3]
While the assumption of
Pauline authorship readily allowed its acceptance in the
Eastern Church, doubts persisted in the
West.
[4]
Eusebius does not list
Epistle to the Hebrews among the
antilegomena or disputed books (though he included the unrelated
Gospel of the Hebrews).
[5] He does record, however, that "some have rejected the Epistle to the Hebrews, saying that it is disputed by the church of Rome, on the ground that it was not written by Paul."
[6] In response, he endorses the view of
Clement of Alexandria: that the epistle was written by Paul in Hebrew (unsigned through modesty), and "translated carefully" into Greek by
Luke,
[7] a thing demonstrated by its stylistic similarity with Luke's
Acts.
Doubts about Pauline authorship were raised around the end of the second century, predominantly in the West.
Tertullian attributed the epistle to
Barnabas.
[8] Both
Gaius of Rome[9] and
Hippolytus[10] excluded Hebrews from the works of Paul, the latter attributing it to
Clement of Rome.
[11] Origen noted that others had claimed Clement or Luke as the writer, but he tentatively accepted Pauline origin of the thought in the text and the explanation of Clement of Alexandria, saying that "the thoughts are those of the apostle, but the diction and phraseology are those of some one who remembered the apostolic teachings, and wrote down at his leisure what had been said by his teacher", as quoted by Eusebius.
[12]
Jerome, aware of such lingering doubts,
[13] included the epistle in his
Vulgate but moved it to the end of Paul's writings.
Augustine affirmed Paul's authorship and vigorously defended the epistle. By then its
acceptance in the New Testament canon was well settled."