Okay, so Pamphilus was a very smart man who lived a long time ago. He was called a theologian, which means he studied about God and religion.
Pamphilus was really interested in learning about the Bible and how people understood it. He wanted to make sure that everyone knew what it said and what it meant.
He talked to lots of other smart people and wrote a lot of books about what he learned. He also helped make copies of the Bible so more people could read it.
Even though Pamphilus lived a long time ago, we still learn from him today. He was very important in helping people understand the Bible better.