The first bullet and Mid Acts, Pauline, and Acts 28 dispensationalists says that they believe Paul was the first member of the body of Christ. They ought to consider the following:
Salute Andronicus and Junia, my kinsmen, and my fellowprisoners, who are of note among the apostles, who also were in Christ before me. - Romans 16:7
From this verse, Paul considers himself to be in Christ, and identifies two people that were in Christ before him. If the belief that Paul was the first member of the body of Christ is a requirement of each of the three positions, then I guess I'm not any of them nor am I a traditional dispensationalist. Almost every dispensational website I've seen has the time chart, so I'm sure that they are all concerned with where the line is drawn identifying the beginning of the "age of grace."
For the law was given by Moses, but grace and truth came by Jesus Christ. - John 1:17
If somebody wants to draw a line, then they ought to think about this verse. The law of Moses is NOT equated with grace and truth. The law of Moses is not grace, and the law of Moses is not truth. (Yet John wanted to hang with those that wanted to mix the law of Moses with grace and truth. Now that's confusion) If it is necessary to identify an age then call it the age of grace and truth. The age previous could be called the age of law and lie.
This understanding puts a whole new spin on:
And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved. And for this cause God shall send them strong delusion, that they should believe a lie: - 2 Thessalonians 2:10-11
The truth comes from Jesus Christ through Paul, and the truth saves.
The lie that they shall believe would be the law. The age of law
and lie returns.
Also, ye shall know the truth and the truth shall make you free (from the law).
It all ties so clearly, and so many have not received a love of the