Why does Paul introduce himself as Paul rather than Saul?
Galates 1:1 (NEG79)
1Paul, apôtre, non de la part des hommes, ni par un homme, mais par Jésus-Christ et Dieu le Père, qui l'a ressuscité des morts,
It is not clear why Paul is using his Roman name (Paul)1 rather than his Hebrew name (Saul, see Acts 13:9). Most probably it has to do with the fact that he is addressing churches that are predominantly made up of believers from a Gentile background.2
1 Paul, apôtre, non de la part des hommes, ni par un homme, mais par Jésus-Christ et Dieu le Père, qui l'a ressuscité des morts,