Maybe Gregory of NaZianzus got it wrong. Why would the Bible need to be set straight in the first place.
Rev 22 18-19
18 For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:
19 And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and [from] the things which are written in this book.
Didn’t Gregory of Nazianzus liken the three “persons” of the Trinity to three men, or three people? Yet he said the Trinity is indivisible. Go figure.