How do you know it was an actual psalm, if you don't actually know which of the psalms it is?
Case in point:
Shakespeare, Aesop, or King James? Which of the following phrases are from the K J Version?
Quiz - Shakespeare or Scripture?
All you have to do is read. The chapter and verses are listed at the beginning.
P.S. I love Psalms. My favorite is Psalm 139.
It’s in the missal, it’s in the bulletin and it is in fact a psalm. DUH! The Psalm ALWAYS comes after the FIRST reading. That’s how he knows. If you could not read and write but are Catholic you know this. From the time you are big enough to sing.