6. (a) Into what separate volumes has the book of Psalms been divided? (b) Who apparently arranged the book of Psalms into final form?
6 From ancient times, the book of Psalms has been divided into five separate books, or volumes, as follows: (1) Psalms 1-41; (2) Psalms 42-72; (3) Psalms 73-89; (4) Psalms 90-106; (5) Psalms 107-150.
... 12. How does Psalms quickly strike up a theme of happiness, as well as the Kingdom theme?
12 Book One (Psalms 1-41).