Once people begin to internalize the “rightly dividing” idea it makes things so much clearer. It’s like those who don’t understand the coming 7 year tribulation and the return to God dealing with Israel.
"And when JAMES, CEPHAS (PETER), and JOHN, who seemed to be pillars, perceived THE GRACE that was GIVEN UNTO ME, they gave to me and Barnabas the right hands of fellowship, that WE should go unto the heathen (Gentiles), and THEY UNTO THE CIRCUMCISION." (Gal. 2:9).
Now look at the Books that are NOT written by Paul from the NT: PETER, JAMES,and the Books of JOHN. Interesting, huh!
God leaves NOTHING to chance or for us to have to guess at. Peter, John, and James were writing TO THE CIRCUMCISION. As is clearly backed up in Gal.
BTW: Jude was also written to the last day saints, Israel.
I have studied Darby and a few other dispensationalists. I think they get “dividing the Word” right for correctly interpreting prophecy. No where did I see Darby or Walvoord, Ryrie and others (maybe Chaefer) “divide” the Age of Grace between two plans of Salvation.
I know Darby and many dispensationalists to include Ryrie get accused by many of doing just that “divid the gospel message.” They all deny it (maybe not Chaefer) and I believe them.