Father Richard's book is a study of the crucial mystery of Christianity: for the salvation of humanity. The first part of the book comprises an survey of the concept of redemption from the foundation of Christianity to time, and the second part is a doctrinal synthesis of the mystery of in which the author sets out a thesis to the effect that God's love for man for the whole economy of salvation. This is a work by a theologian, theologians. From that (i.e., the scholarly) standpoint, it is regrettable Richard has failed adequately to cops with certain problems of methodological a work of this kind for instance, he consistently uses non-critical works from the patristic and medieval periods (a point of some importance dogmatic theology). Despite that and other similar failings, however, and Joseph Horn's offensively ""visible"" translation, this is a masterful theologian and it must find a place in every theological library.