The book of Psalms has five smaller books. They’re not equal in length, but the ending of each book is marked by various climactic statements.
Book I is from Psalms one to 41, Book II is from Psalms 42 to 72, Book III is from Psalms 73 to 89, Book IV is from Psalms 90 to 106, and Book V is from Psalms 107 to 150.
I just finished preaching through Book III of the Psalms, and I was struck by the final line of Psalm 89: “Blessed be the LORD forever! Amen and Amen.” It’s the last verse of Psalm 89, but it’s also the closing line for Book III (which is from Psalms 73 to 89).
Clinging by your fingertips?
You’ve got to hand it to Jude; we may not know much about him, but he could certainly could knock …