The writings of the Apostle Paul exists as a collection known as the Pauline corpus, making up a significant portion of the New Testament writings. Regarding this collection of Paul’s writings, F.F. Bruce writes in his book The Canon of Scripture:

We do not know by whom or in what place the first edition of Paul’s collected letters was produced. C. F. D. Moule has suggested that it was Luke’s doing: “it is entirely in keeping with his historian’s temperament to collect them.” As for the place, Ephesus, Corinth and Alexandria have been suggested. The suggestion of Alexandria has been supported by the Continue Reading…