The book of Leviticus is like a guidebook for the people of Israel to follow rules and laws that were given to them by God. It tells them how to worship, how to live their daily lives, and how to treat each other and the world around them.
It's like a big list of Do's and Don'ts. It sets up how sacrifices should be made, what priests should wear, what food is okay to eat, and what animals can be used for offerings. It also explains how to handle illnesses and diseases, and what to do if someone breaks the rules.
Most of these rules and laws are very specific and might seem strange to us now. For example, it says that people cannot eat certain animals like pigs, and that they have to take a bath after touching certain things like dead animals. These rules might seem weird, but they were very important to the people of Israel at the time because they believed it was what God wanted them to do.
Overall, the book of Leviticus is a way for the people of Israel to show obedience and respect to God by following these rules and laws. Even though some of them might seem strange to us now, they were very important for the people of Israel to live a good and holy life.