The five-book division and benedictions
The Book of Psalms is divided into five sub-books, each concluding with a benediction, except for the fifth book. For instance, Psalm 41, the last of the first sub-book, ends with a blessing for Yahweh. These benedictions, like 'Blessed is Yahweh God of Israel from eternity to eternity. Amen,' mark the end of each internal collection, indicating an intentional structuring of the larger book.
Summarized by AI · The Hebrew Bible: Exploring the Literature of Ancient Israel · Lecture 21: Psalms | The Poetry of the People (?) · watch the clip