The Book of Leviticus is the third book of the Pentateuch, traditionally attributed to Moses. It serves as a manual for the priests and the people of Israel, detailing the laws and regulations that govern their worship and daily life. Leviticus emphasizes the holiness of God and the need for His people to live in a way that reflects His character. It is a book rich in ritual, sacrifice, and moral instruction, providing a framework for understanding the covenant relationship between God and Israel.