As early as the end of the second century, the church of Alexandria in Egypt accepted Hebrews as a letter of Paul, and that became the view commonly held in the East. Pauline authorship was contested in the West into the fourth century, but then accepted. In the sixteenth century, doubts about that position were again raised, and the modern consensus is that the letter was not written by Paul. There is, however, no widespread agreement on any of the other suggested authors, e.g., Barnabas, Apollos, or Prisc(ill)a and Aquila. The document itself has no statement about its author.
Among the reasons why Pauline authorship has been abandoned are the great difference of vocabulary and style between Hebrews and Paul's letters, the alternation of doctrinal teaching with moral exhortation, the different manner of citing the Old Testament, and the resemblance between the thought of Hebrews and that of Alexandrian Judaism. The Greek of the letter is in many ways the best in the New Testament.
Since the letter of Clement of Rome to the Corinthians, written about A.D. 96, most probably cites Hebrews, the upper limit for the date of composition is reasonably certain. While the letter's references in the present tense to the Old Testament sacrificial worship do not necessarily show that temple worship was still going on, many older commentators and a growing number of recent ones favor the view that it was and that the author wrote before the destruction of the temple of Jerusalem in A.D. 70. In that case, the argument of the letter is more easily explained as directed toward Jewish Christians rather than those of Gentile origin, and the persecutions they have suffered in the past (cf Heb 10:32-34) may have been connected with the disturbances that preceded the expulsion of the Jews from Rome in A.D. 49 under the emperor Claudius. These were probably caused by disputes between Jews who accepted Jesus as the Messiah and those who did not.