Simon Peter was one of the twelve apostles of Jesus Christ and is often considered the leader of the group. He was a fisherman by trade, working alongside his brother Andrew on the Sea of Galilee. Known for his strong personality, Peter was one of the first disciples called by Jesus and played a significant role in the early Christian church. Peter is recognized for his boldness and faith, but he also experienced moments of doubt, such as when he denied knowing Jesus three times before the crucifixion. After Jesus' resurrection, Peter became a key figure in spreading the teachings of Christianity, eventually becoming a martyr for his faith.