If you count chapters in each Bible Book , Psalms has the most at 150 Chapters. The next most chapters is the book of Isaiah with 66 Chapters. So Psalms Chapters 67, 68, 69......up to 150 are all solitary unique chapter numbers, found nowhere else in scripture. That is 84 "Unique Chapters" inclusive of chapter 67.... (see the link at 5 minutes to verify this).