Leviticus is believed to have been written by Moses. God’s promises to Moses in the books of Genesis and Exodus brought the nation of Israel into fruition. The Israelites had gone through many cycles of trusting God, and then breaking His trust and walking outside of His will. The book of Leviticus is God’s “instruction manual” for the people of Israel, as well as for today’s Christian, and was meant to guide them in how they should show obedience to Him through sacrifice and tangible acts of worship. Exodus established Israel as a holy nation, and Leviticus showed them how to retain that holy mantle.