Okay kiddo, the Bible is a really old book that tells stories about God and his followers. Sometimes, people find things that help us understand more about the Bible and the people in it.
Sometimes, these things are buried in the ground and people have to dig them up. They can find old writings or artifacts. This helps us learn more about the time and people in the Bible.
For example, one time, people found an ancient city called Jericho. In the Bible, there was a story about God's followers marching around the city and it's walls falling down. The archaeologists found that the walls did fall down and they found evidence of a battle.
By discovering these buried secrets, we can learn more about the people and events in the Bible and understand it better.