Okay, kiddo, so there was a long time ago a book that had seven parts called the Heptateuch. The Heptateuch is made up of the first seven books of the Christian Old Testament. These books are Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua, and Judges.
Think of it like a big storybook with seven different stories inside it. Each story talks about different things, like how the world was created and what happened to the people of Israel.
These stories are very important to many people because they are believed to be written a long time ago by people who were chosen by God to share his teachings with others. People read these stories to learn about how to live a good life and to better understand their faith.
Overall, the Heptateuch is a big book with many interesting stories that teaches us how to live righteously in the way of the Lord.