Please READ this excellent description of right division.
Dont argue...just READ it!
RIGHTLY DIVIDING THE WORD AS TO ITS SUBJECT- MATTER:
It is the common belief (albeit IN ERROR)that every part of the Bible is to be interpreted directly as referring to "the church of God", or as pertaining to every person, at every stage of the world's history.
This neglect of the precept to rightly divide it, is an effectual bar to the right understanding of the Word and to our enjoyment of its study. This non-understanding of the Word is the explanation of its neglect, and this neglect is the reason why so many, who should be feeding on the spiritual food of the Word are so ill-fed in themselves; and so ill-furnished for every good work (2Tim.3:17).
While the word of God is written FOR all persons, and FOR all time, yet it is not true that NOT every part of it is addressed to ALL persons or about ALL persons in ALL time.
THREE DISTINCT CLASSES OF PERSONS:
Every word is written for our learning and contains what all ought to know; yet its subject-matter is written according to the principle involved in 1Cor.10:32, and is written concerning one or other of 3 distinct classes of persons:
The Jews, the Gentiles, and the church of God.
According to general belief, everything that goes to make up the subject-matter of the Word of God is about only one of these three, and whatever may be said about the other two (the Jews & the Gentiles), all is interpreted of only the one (the church of God). This comes out of selfishness which pertains to human nature; which in doing this and all beside, is ever ready to appropriate that which belongs to others. But no greater impediment to a right understanding of the Word could possibly be devised.
I believe every word from Genesis to Revelation. There is NOT one word that I can do without; NOT one word that I can dispense with, without loss. I do not want to deprive any one of any portion of "the word of truth."
What is written to and about the Jew belongs to and must be interpreted of the Jew.
What is written of and about the Gentile belongs to and must be interpreted of the Gentile.
What is written to and about the church of God belongs to and must be interpreted of the church of God.
Believe God when He says that the visions shown to Isaiah were "concerning Judah and Jerusalem" (Isa.1:1). It is true that they were written for us and "for our learning" (Rom.15:4) but they are NOT addressed TO us or written concerning us, but "concerning Judah and Jerusalem." It would be an act of dishonesty for us to appropriate, by interpreting of ourselves, that which is spoken of Israel.
In like manner, if we do take as some do, the words of the Epistle to Ephesians as though they were written to, or concerning the Gentiles (the unconverted world), then we not only rob "the church of God" of its most precious heritage, but we teach the universal Fatherhood of God, instead of His Fatherhood of only those who are His children in Christ Jesus. It will be seen that unless we rightly divide the subject-matter of "the word of truth", we shall not get the truth, but shall get error instead.
Every part of the Bible is written "concerning" one or other of these 3 divisions, or classes of persons. Sometimes, in the same passage or book, there may be that which is concerning all 3. Sometimes a whole book may be concerning only 1 of these 3, and the other 2 are altogether excluded. We may all 3 learn much from what is written of only the 1; for the inspired, God-breathed Word is "profitable for doctrine, for reproof, for correction, for instruction" for all who shall read it (2Tim.3:16). That which happened to Israel happened unto them for examples, "and they are written for our admonition" (1Cor.10:11), "whatsoever was written aforetime was written for our learning." (Rom.15:4)