Ah yes, Michael Pearl. Some of his stuff is good, others, just doesn't jive with clear scripture when it comes to salvation by grace through faith. See the problem is, that when you take on a pre-trib rapture belief, you have to invent things like different dispensations in order to contain this belief when scripture talks about saints during the tribulation. So you have to make a distinction separating us from them, and then you naturally make a separation between yourselves and Israel and people from before the time of Moses to Moses and the children of Israel.
This is created by that belief in a pre-trib rapture, it is not created in scripture itself. That's why I pointed out Romans 4 to show that even back in Abraham's time, before the laws of Moses, that it has always been salvation by grace through faith. That doesn't change, never has, and I don't believe it ever will.
In Revelation itself, in Revelation 6, and in Revelation 13 which expands into what is going on after the 5th seal, we're talking about the great Tribulation, the Antichrist and how in Revelation 13:7, who is the Antichrist making war against? The saints, believers. Many of them will be martyred, that is what is meant by the beast overcoming them.
You look at those saints as someone else. So you give them different qualities, like having different conditions for salvation.
I look at them as us, maybe even me personally.
If you want, a different view on the tribulation that is more in line with my own, Pastor Steven Anderson has a series on revelation also on Youtube that talks about a mid trib, pre wrath view.