Paul the Apostle
When Saul reached Damascus, he was taken to Ananias, one of Jesus's disciples, where he got his sight back and was baptized as a Christian. He spent the next three years studying the Jewish scriptures again to find explanations for the Christian teachings. His experiences changed his view on Christianity completely. In Acts 13:9, he begins to be called Paul.  This was the Hellenized version of the name Saul. He used his earlier education to explain his new faith to other people and to discuss things with people who had other beliefs.