Thank you for your post.
Although I have looked up Dispensationalism, I still haven't a clue what it's all about ??
Ooooo....
This is important.
Dispensational Premillennialism, or
Dispensationalism in general, is
very popular nowadays. It was invented in the early-1800s and its invention is generally attributed to one man,
John Nelson Darby, but he did not do it single-handedly. Darby's views were specifically Dispensational and Premillennial but the more generic "modern futurism" has variations (pre-trib, mid-trib, post-trib, etc.) and while most are Zionist, they do not all subscribe to "
dispensations" the way Dispensationalism does. This is why I often use the phrase "
modern futurism."
Dispensationalism arose during the time in modern Christian history we now call the "
Restoration Movement." Following the earlier revivals of the 18th century Christianity had moved away from creedalism to experientialism (knowing one was a Christian because of a conversion experience, not due to consciously subscribing to formal Christian beliefs). The sects of restoration movement varied in doctrine and practice but they all shared two common themes: 1) the Church is corrupt (and therefore in need of restoration), and 2) apocalypse is soon pending (so repent and come join us because we're trying to restore the Church correctly). These sects each had their own views on what qualified or constituted "
restoration," or what the NT-era Church looked like. Some of these sects can be said to fall within the pale of orthodoxy, others were outright cults. Among these sects were the Campbellites, the Millerites, the SDA, CoC, Brethren, JWs, LDSes, Christadelphians, and others. Darby was Anglican but he left the Anglican Church to affiliate with the Plymouth Brethren. His views were so controversial and his practices so legalistic and unyielding that he left the Plymouth Brethren and started his own sect. He called it "
Extreme Brethren."
Two of the most significant events that followed Darby and legitimized and institutionalized Dispensationalism and Dispensational Premillennialism (to be the former is to be the latter) were the publication of Cyrus Scofield's Study Bible and Lewis Sperry Chafer forming Evangelical Theological College, which we all know today as Dallas Theological Seminary (DTS). DTS teaches Dispensationalism. Scofield's Bible was among the first commentary Bibles, and it sold hundreds of thousands of copies and everyone who read it learned Dispensationalism through its commentary because Scofield was deliberately including Dispensational views of scripture in his "study". Keep in mind that until the late 1800s and early 1900s most people 1) could not read, and 2) did not own Bibles. With the rise of public education, modern improvements in the printing press and the eventual development of the assembly line Bibles and reading grew. Combined with the move toward experientialism, this mean every person was their own interpreter of scripture.
I have read some of the influences on Darby and (most) everything Darby, Scofield, Chafer, Pentecost, Moody, Ryrie, Walvoord, Ice, Vlach, and other prominent dispies have written. If you're interested in learning Dispensationalism from the Dispensationalists then I recommend Chafer's book titled, simply, "
Dispensationalism." Charles Caldwell Ryrie, another former president of DTS also wrote a book with the exact same title and it is also very good for the purpose of learning Dispensationalism.
After you've read the comparative titles I recommended previously

.
Everything I just posted (except my claim of reading

) can be objectively verified by anyone. Those statements are not personal opinions.
I was intrigued by the fact that Jerusalem sits on seven hills as this has shed light onto this verse.
“This calls for a mind with understanding: The seven heads of the beast represent the seven hills where the woman rules. They also represent seven kings. Rev 17:9
I always thought this verse related to Rome.
Yes, and most of Christianity has long thought that is the case. You may have observed other posters appealing to other commentaries as if the commentary is a more correct and authoritative source than either scripture itself or the facts of history and geography.
The larger truth is that no one today knows for sure what's what and who's who in Bible prophecy. Most of eschatology is rank speculation, especially among modern futurists. It's not supposed to be that way. I, personally, believe many of the problems - but not all - are solved by reading scripture exactly as written and applying basic rules of exegesis. That's why I posted about the understanding of the original writer and his original audience. THE most basic rule for understanding scripture is to
first read the text exactly as written with its normal meaning of the words in their ordinary usage unless the text itself provides reason for not doing so and then understand the text as the original audience would have understood it. This op fails at both.
As far as the Rome v Jerusalem question goes, this comes up in a number of places, depending on which eschatology a person holds. For example, the "
lawless man," of Thessalonians could be
anyone who has disobeyed God. All sinners are lawless people simply because sin is lawlessness. The lawless man could be a Gentile but that begs the question why the early Church would be concerned with a non-believer, why they would measure him by the Law, and why he would be in the temple. Of course, there's plenty of real historical precedent for that view because at least two Roman generals entered the stone temple, and many of the Caesars self-deified (in the
Roman sense of the word, not the biblical definition). On the other hand, if the law in question, the law by which the lawless man is measured is the Law of Moses, then that lawless guy is most likely a Jew, not a Gentile. This, like the seven hills, escapes most Christian's understanding because they're not familiar with the rules of exegesis OR the facts of the Zealots taking over Jerusalem, the event that led to Jerusalem's siege. There were at least three prominent Zealots who violated the temple. The Zealots mocked the Levitical priesthood and the theocracy, as well as the rule of Imperial Rome. They were ancient equivalences of Islamic fundamentalist jihadists of today. They literally killed anyone who disagreed with them, performing human sacrifices in the temple (in the holy of holies on the bema seat) and according to Josephus (a somewhat questionable source) they murdered so many people that the blood was thigh-high on the temple's walls and the blood so thick in the heat that anyone who trod the floor risked losing their sandals due to their being stuck in the congealed blood.
That is pretty lawless. Those views are also much more consistent with another basic rule of exegesis: let scripture interpret scripture and look to scripture first before looking elsewhere. We should look first to scripture to understand the identity of the lawless man, not Josephus, or Tacitus, nor Darby, nor Lindsay, nor folks like David Jeremiah or John MacArthur.
Notice also
the Thessalonians text is conditional. It states, "
For it will not come unless the apostasy comes first, and the man of lawlessness is revealed." To what is the "
it" in that referring? According to the previous verse that "
it" refers to "
the coming of our Lord Jesus Christ and our gathering together to him"!!! but if that's pointed out to most modern futurists they lose their minds and ad hominem will ensue. According to the 2 Thessalonians text itself, that particular coming of Jesus and our being gathered to him is predicated upon an apostacy that, again, according to the 2 Thessalonians text itself may or may not actually occur. And then there is the problem with conflating the lawless man with the abomination of desolation (who some think is a person), and the antichrist when scripture NEVER says those three are the same person. Could be Nero. Could be Titus. Could be Giscala (A Jewish Zealot who most have never heard of). Could be some guy in the far distant future multiple millennia from now so we don't need to worry about him and can get on with the business of spreading the gospel as Jesus commanded in the Great Commission (instead of dreading whether or not this guy or that is going to be the bad guy and whether or not we're going to get raptured off the planet as God lets His earth slide into depravity because the Church is increasingly impotent.
I'm ranting on purpose.
Zealotry comes in many eschatological forms

.
They do NOT come with signs on their foreheads announcing their inanity. We're supposed to know scripture, and know it well enough (
exegetically), to recognize falsehood when we read/hear it. For the last 180+ years Dispensationalist Premillennialists have been making predictions and not a single one of their predictions, not a single DP teacher has ever been correct. Not one. They may teach good Christology, or good soteriology, but they do NOT teach good eschatology and we KNOW this because no prognostication has ever been correct. They ALL have a 100% fail rate. We can ALL hear it any given day on Christian radio/television/cable (because DPers heavily populate those mediums). David Jeremiah, for example, can often be said to say he believes Jesus will return in his lifetime. I've been hearing him say that for 20+ years.
That is a great hope to have, but Dr. Jeremiah is 83 years old.
If he lives to be 100 then he is implicitly saying Jesus will return in the next 17 years. There is no escape from that logically necessary conclusion. Since he's a Dispensational Premillennialists it ALSO means he is saying Israel will regain all the original promised land, reconstitute a monarchy (and a theocracy), rebuild the temple and reinstitute animal sacrifices, and the rapture will occur ALL within the next 17 years.
It might happen.
But if that man dies and none of it has happened then his death proves him a liar.
And otherwise, earnest, devout, and intelligent Christians don't consider these things when it comes to end-times teachers. Dr. has made millions off his teachings and not one prognostication of his has ever been correct. It's his followers that think Revelation 13's "mark" might be a computer chip, cell number, or DNA change, and it's nearly impossible to have an intelligent conversation about this because most modern futurists are ideologues first.
Whatever the mark was, is, or may yet be.... the mark will have to meet the requirement of original understanding by the original reader of the first century. It was/is/could be a tattoo, scar, or other mark, but it is NOT any of the three options listed in this op.