Why don't the Psalms cited in Catholic books match the ones in my Bible?
I have seen some of your Catholic books that have quoted the Psalms. When I go to look them up in my Bible they don't say anything close to what you said they did.
It seems you're missing a basic point of difference between the organization of the psalms in the Protestant and (many) Catholic Bibles. Our citations are from a Catholic Bible; yours are not. Both list a total of 150 psalms. The Protestant Bible splits psalm 9 into two, making it 9 and 10. It then combines psalms 146 and 147. The result is a difference in the numbering of the psalms in between.