Saint Simon, also known as Simon the Zealot, was one of the twelve apostles of Jesus Christ. He is often depicted as a fervent preacher who spread the teachings of Christianity after the resurrection of Jesus. His life and works are mentioned in the New Testament, although little is known about his specific contributions. Traditionally, Saint Simon is believed to have traveled extensively to spread the Gospel, possibly reaching regions like Egypt and Persia. He is often associated with the early Christian church and is venerated as a saint in various Christian denominations, particularly on his feast day, which is celebrated on October 28.