Leviticus picks up where Exodus leaves off. The tabernacle has just been built and filled with the glory of the LORD (Exodus 40), and now—from that very tent of meeting—God speaks. The book is essentially a record of those instructions, given to a redeemed people who must learn how to live in the presence of a holy God.
Author, Date, and Audience
Leviticus belongs to the Torah, the five books of Moses, and Scripture consistently presents Moses as the one to whom the LORD spoke these laws (the recurring "And the LORD said to Moses" frames nearly every section). The historic Jewish and Christian tradition therefore receives Leviticus as Mosaic, given at Mount Sinai during Israel's wilderness sojourn around the fifteenth or thirteenth century BC. Since the rise of source criticism, many modern scholars have assigned much of its priestly material to a later editorial hand (the so-called "P" source) compiled centuries afterward. Yet the book's deep roots in the wilderness setting, its archaic ritual vocabulary, and the witness of the rest of Scripture and of Jesus himself (who speaks of "what Moses commanded," Matthew 8:4) give good reason to affirm its substantial Mosaic origin. The original audience was the generation God had just rescued from Egypt—a former slave nation now camped at Sinai, being formed into "a kingdom of priests and a holy nation" (Exodus 19:6).
Purpose and Major Themes
The occasion is profoundly pastoral: a sinful people now lives next door to a holy God, and that is a perilous thing. Leviticus answers the question, How can sinners draw near and stay near to the LORD without being consumed? Its great refrain is "Be holy, for I the LORD your God am holy" (11:44; 19:2). Holiness is the dominant theme—God's own moral and ceremonial purity, and the call for Israel to reflect it in worship, diet, sexuality, justice, and everyday life. Closely woven with holiness are the themes of sacrifice and atonement (blood given to make atonement for the soul, 17:11), the priesthood that mediates between God and people, cleanness and uncleanness, and the rhythms of sacred time—Sabbaths, feasts, and the Jubilee. Underlying all of it is grace: these laws are given because God has already redeemed Israel and dwells among them, not as a ladder by which they earn his favor.
Structure
The book unfolds in a clear movement from sacrifice to holy living:
- Chapters 1–7 — The five offerings (burnt, grain, peace, sin, and guilt), the means of approach to God.
- Chapters 8–10 — The ordination of Aaron and his sons, and the sobering judgment on Nadab and Abihu.
- Chapters 11–15 — Laws of clean and unclean: food, childbirth, skin disease, bodily discharges.
- Chapter 16 — The Day of Atonement, the theological heart of the book.
- Chapters 17–27 — The "Holiness Code": holy living, the feasts, the sabbatical and Jubilee years, and the closing blessings and curses.
How Leviticus Points to Christ
For Christian readers, Leviticus is not a museum of obsolete ritual but a shadow cast backward from the cross. The Letter to the Hebrews reads it as a sustained portrait of Jesus: he is the spotless sacrifice once offered for sins (Hebrews 10:10), the great High Priest who needs no offering for himself (Hebrews 7:26–27), and the fulfillment of the Day of Atonement, entering the true Most Holy Place by his own blood (Hebrews 9:11–12). Every altar, every drop of blood, every act of cleansing whispered that sin is costly and that God himself would one day provide the Lamb. In the whole story of redemption, Leviticus stands as the divinely given grammar of holiness and atonement—teaching us why we cannot approach God on our own terms, and preparing us to receive the One who opens "a new and living way" into God's presence (Hebrews 10:20). Read in Christ, its call still stands: "Be holy, for I am holy" (1 Peter 1:16)—now answered not by our striving but by union with our Savior.