‘Deuteronomy’ is a misnomer, it means ‘the second law’. The name is taken from Deuteronomy 17:18 where the expression really means having a copy of the law. Deuteronomy is therefore not a second, different, law but a renewal of the covenant made on Mount Sinai. For a people on the brink of entering their promised land Deuteronomy confirmed God’s gracious promises as they prepared for new horizons and adventures:

Allan Harman shows the covenant structure of Deuteronomy throughout its 5 key sections

Historical introduction (1:1 to 4:49) The Foundation of the Covenant Relationship (5:1 to 31) The Exposition of Ten Commandments (6:1 to 26:15) The Re-affirmation of the Covenant (27:1 to 30:20) The Continuation of the Covenant (31:1 to 34:12)