Final answer:
Saint Paul facilitated the easier conversion to Christianity by promoting the faith to non-Jewish communities, emphasizing universal salvation, and addressing a diverse audience through his missionary journeys and epistles.
Step-by-step explanation:
Paul of Tarsus, also known as Saint Paul, made conversion to Christianity easier by spreading the message beyond the Jewish communities of Palestine to the Greco-Roman world. He played a pivotal role in the transformation of Christianity into a universal faith rather than one limited to the Jewish people. This inclusivity was facilitated by his missionary journeys, during which he founded several churches and wrote epistles that articulated a version of Christianity that was appealing and accessible to Gentiles (non-Jews).
His teachings emphasized faith in Jesus Christ as the path to salvation, which was a departure from traditional Jewish customs and laws. Through his willingness to adapt and explain Christian concepts in terms that were understandable within Greco-Roman cultural contexts, Paul's influence led to a significant growth in the number of Christian converts. His message of universal salvation ensured that Christianity was not confined to a single ethnic group but was available to all, thereby vastly increasing the potential for conversion.
Furthermore, Paul's epistles addressed various issues faced by early Christian communities, providing guidance that would shape Christian theology and practice. His vision of a Christian community that was open to all, regardless of social status, gender, or previous religious affiliations, made Christianity an attractive option for a diverse range of individuals throughout the Roman Empire.