The Pauline epistles are the fourteen books in the New Testament traditionally attributed to Paul the Apostle, although many dispute the anonymous Epistle to the Hebrews as being a Pauline epistle.
There is nearly universal consensus in modern New Testament scholarship on a core group of authentic Pauline epistles whose authorship is rarely contested: Romans, 1 and 2 Corinthians, Galatians, Philippians, 1 Thessalonians, and Philemon. Several additional letters bearing Paul's name are disputed among scholars, namely Ephesians, Colossians, 2 Thessalonians, 1 and 2 Timothy, and Titus. Scholarly opinion is sharply divided on whether or not Colossians and 2 Thessalonians are genuine letters of Paul. The remaining four contested epistles-- Ephesians, as well as the three known as the Pastoral epistles (1 and 2 Timothy, and Titus)–- have been labeled pseudepigraphical works by most critical scholars.
There are two examples of pseudonymous letters written in Paul’s name apart from the New Testament epistles, the Epistle to the Laodiceans and 3 Corinthians.
The Epistle to the Hebrews is actually anonymous, but it has been traditionally attributed to Paul. The church father Origen of Alexandria rejected the Pauline authorship of Hebrews, instead asserting that, although the ideas expressed in the letter were genuinely Pauline, the letter itself had actually been written by someone else. Most modern scholars generally agree that Hebrews was not written by the apostle Paul. Various other possible authorships have been suggested.
Scholars use a number of methods of historiography and higher criticism to determine whether a text is properly attributed to its author. The primary methods used for Paul's letters are the following: