I wil get to killah priest later, but gza claims to not read much, but as I've shown you in past threads, whole lines were taken from a book.
Here is one line he did not change much. He took it from the 'apocrypha: wisdom' chapter 4 verse 9. He used it as his last line on the older gods forever album.
'But wisdom is the grey hair unto men, and AN UNSPOTTED LIFE IS OLD AGE.'
Anyway, I will do more focussing on KP in this thread sometime later.
Marinate on the Gza/Genius taking lines from the bible with little modification to make the line his.