Leviticus is the third book of the Bible and the most detailed on worship in the Old Testament. Written by Moses, it gathers the laws God gave Israel while the people were still camped at the foot of Mount Sinai.
The book’s name comes from the Levites, the tribe chosen for priestly service. But the central subject is not a tribe: it is how a sinful people can draw near to a perfectly holy God.
The first chapters explain the sacrifices: the burnt offering, the grain offering, the fellowship offering, the sin offering and the guilt offering. Most of them involved blood and taught that forgiveness has a price.
Next, Aaron and his sons are consecrated as priests. The joy of the ceremony is interrupted when two of them die for disobeying God, a solemn reminder that serving the Lord requires reverence.
Then come the purity laws, which touched almost everything: food, disease, childbirth, sexual life. They taught Israel to see holiness not as a matter for the sanctuary alone, but for all of life.
The high point of the book is the Day of Atonement, when the high priest entered the Most Holy Place once a year to bring the sins of the whole people before God. This day pointed to the need for a greater, final sacrifice.
In the final chapters, what is called the Holiness Code unites worship and ethics: loving your neighbor as yourself, keeping the Lord’s feasts, letting the land rest and freeing the enslaved in the Year of Jubilee.
Leviticus may seem distant to today’s reader, full of rituals no longer practiced. But behind every law lies the same question that still matters: how can someone unclean live near a holy God.
The book’s answer points, chapter after chapter, to a sacrifice that would finally close that distance. It is worth reading Leviticus to the end to understand why the New Testament speaks so much of the blood, the high priest and the torn veil.