The whole book of Leviticus can be divided into sections, each of which answers questions about how men may approach God.       

Chapters 1-7 give detailed directions about the offering of sacrifice, and answers the question: how may man present offerings to the Holy God to show adoration, gratitude and confession of sin?

Chapters 8-10 give directions for the consecration of those who are to be mediators between man and God in the ritual of sacrifice. Aaron and his sons were to be set apart to serve God. The question answered here is: who will mediate between the human and the Holy?  

Chapters 11-16 give directions for the cleansing of what is known to be unclean and therefore unholy in community life. Directions for purification and avoidance of unholiness are given. The question answered is: how may what is unholy in the community be cleansed?

Chapters 17-27 give very many instructions of all kinds for the furtherance of 'holiness' in the whole life of the people of God and answer the question: what is holy living?

No matters were outside the concern of the Holy God, whether relating to sexual behaviour, use of land, social relationships, contacts with pagan worshippers, physical deformities, disease, land sales, harvest- t ing and offerings of food to God, or anything else.