You are buying the following :  25 volume Biblical commentary on the Old Testament by C.F. Keil and Delitzsch in hardcover This classic in depth commentary covers all old testament books, Pentateuch 1-3 Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Historical books Volumes 4-8 Joshua, Judges, Ruth, Samual, Kings, Chronicles, Ezra, Nehemiah, Esther, Poetical books Volumes 9-13 Job, Psalms, Proverbs, Ecclesiastes, Song of Songs, Prophetical books Volumes 14-25 Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Twelve minor prophets