Bede : The Jews also and proselytes. Proselytes, that is, they called the newcomers those who, originating from the Gentiles, preferred to choose circumcision and Judaism, as is narrated that Achior did in the book of Judith. Therefore, they say, not only those who were Jews by nature had gathered from different parts of the world, but also those who, born from the foreskin, had embraced their rite. — Commentary on Acts Bede : And Roman sojourners. It would be more correctly rendered in Greek as And Roman wanderers, that is, Jews who were living in Rome as foreigners, just as others elsewhere, as mentioned above. For it is shown in the following verse that among those present were foreigners who are called proselytes in Greek, that is, those who from the nations had converted to Judaism, abandoning the rites of their own cultures, as it is said: Jews and proselytes as well. — Retractions on Acts