The word ‘Torah’ (which is what the Jews call the first five books of the Bible) means ‘instruction, regulation or law’. It occurs throughout key passages in Leviticus (e.g. Lev 6:14, 25; 7:1, 7, 11, 37). Leviticus follows Exodus 40, where Moses sets up the tabernacle according to God’s instructions (Exod 24:15-25:9ff). The book is set when the Israelites are camped at Mount Sinai on their way to the Promised Land.
