Are Paul's letters always in the same order in every New Testament copy?
Yes. Paul's letters as preserved in the New Testament have consistently appeared in the same order in every available copy found in libraries and museums. By contrast, the rest of the New Testament writings may vary in order, but Paul's epistles remain fixed, indicating the Holy Spirit laid out that format.
Les explains that all of Paul's letters, as we have them in our New Testament today, have always been in that order in every copy of the New Testament still available in libraries and museums. The rest of the New Testament may appear in various orders; it is not always Matthew, Mark, Luke, and John, and it is not always with the little Jewish epistles at the end. But Paul's letters are always in the order in which we have them today, which Les says should tell us something: the Holy Spirit has definitely laid out the format of these epistles. He also notes that Galatians should have been in front of Romans, because Galatians is more like an artist's pencil drawing, while Romans is the final paint and oil on canvas. Galatians is so introductory and does not get into the deep things of Romans, yet it has its divine purpose for being exactly where it is, following the two letters to the Corinthians.