I am not familiar with the scientific discussion, but I've done some research. I haven't been able to find any evidence, that Saul
actually changed his name to Paul
. The bible simply states, that Saul
was "also known als Paul
". This is found in Acts 13,9, four chapters after Paul
's conversion and from then on he is referred to as Paul
only. But this does not neccessarily be connected with his conversion. As far as Jewish naming practice is concerned, I found that both was possible: parents giving their children a Jewish name plus a non-Jewish name and adults chosing a non-Jewish name in addition to their given name. Inthe case of Paul
it looks like we simply don't know. Or do you have any additional information?