What is the connection between John the Baptist and John the Apostle in the context of their roles in the Bible?

John the Baptist and John the Apostle were both important figures in The Bible, but they had different roles. John the Baptist was a prophet who prepared the way for Jesus and baptized him. John the Apostle, also known as John the Evangelist, was one of Jesus' disciples and wrote the Gospel of John, as well as three epistles and the Book of Revelation. While they both played significant roles in spreading the message of Christianity, their specific roles and contributions were distinct.