"The Psalms are an epitome of the Bible, adapted to the purposes of devotion. They treat occasionally of the creation and formation of the world; the dispensations of Providence, and the economy of grace; the transactions of the patriarchs; the exodus of the children of Israel; their journey through the wilderness, and settlement in Canaan; their law, priesthood, and ritual; the exploits of their great men, wrought through faith; their sins and captivities; their repentances and restorations; the sufferings and victories of David; the peaceful and happy reign of Solomon; the advent of Messiah, with its effects and consequences; his incarnation , birth, life, passion, death, resurrection, ascension, kingdom, and priesthood; the effusion of the Spirit; the conversion of the nations; the rejection of the Jews; the establishment, increase, and perpetuity of the Christian Church; the end of the world; the general judgment; the condemnation of the wicked, and the final triumph of the righteous with their Lord and King. These are the subjects here presented to our meditations." Expounding on each of the above-mentioned themes, Horne shows how the Psalms interact with each other, the Old Testament, and the Bible as a whole.