Leviticus outlines the sacrificial system, priesthood, dietary laws, moral codes, and festival calendar. It repeatedly declares, 'Be holy, for I am holy.' The book shows that a holy God requires a holy people — and provides a way of approach through sacrifice.
The Day of Atonement (Yom Kippur) stands at the center: once a year, the high priest entered the Most Holy Place with blood to make atonement for the nation.
