Okay kiddo, let's talk about something called the primacy of Peter. Peter was a guy who lived a long time ago and was one of the twelve apostles of Jesus. Some people believe that Peter was actually the leader of the apostles and that he had a special authority from Jesus.
This belief is called the primacy of Peter. It means that Peter was the first among the apostles and that he had a special role in leading the early Christian church.
Some people believe this because Jesus himself gave Peter the nickname "Rock" and said that he would be the one to build his church. Later on, Peter became the leader of the church in Rome and many people believe that he was the first pope.
However, not everyone agrees with this idea. Some people think that all of the apostles were equal and that there was no one leader among them.
In the end, whether or not you believe in the primacy of Peter is up to you. But it's an interesting idea to learn about and it can help you understand more about the early Christian church.