As the last book of the Pentateuch, Deuteronomy was considered divine law par excellence in early and medieval Christianity. Circa AD 400, Jerome, Ambrose and Augustine, each with their own emphasis, provided expositions for this biblical book, thus shaping the beginning of the Latin exegesis of Deuteronomy. Jerome transmitted to the Latin world Origen's typological motif and his allegorical expositions; as he was meanwhile developing a philology-based exegetical approach of his own. Ambrose was interested in expounding the "precepts of the Law," and used them as the guide to the ethics of the Christian common life. Augustine searched for the link between the Old Law and the Gospel via "spiritual understanding"; he was more inclined to study "the proper sense" of the biblical text later in his life. The exegetical heritage of these three Fathers was then gradually received by the Latin exegetes of later centuries, and functioned as the diverse foundation for the Latin exegetical tradition of Deuteronomy.