Below is a parallel layout of Jesus' Olivet Discourse. I must apologize in advance for it being in the format of successive photos pasted to the wall, and not the most clear quality either. For now it is the best I can do. The source of these parallels is from Burton's English edition of Gospel parallels (as footnoted at the bottom of this post). Unfortunately, the English looks like it uses the KJV, which provides a notoriously misleading translation of Matt. 24:3, which reads: "What shall be the sign of thy coming, and of the end of the world?"
For those who have access to the Greek text underlying that translation, it is obvious that the word translated as "world" is actually "age." Jesus is asked what would be the sign of his coming (parousia) and the sign of the end of the age (not the "world", which is an entirely different Greek word).
For those interested in viewing the parallels, a pdf of Burton's greek parallels can be found here. As far as the formatting is concerned, that is my own; it was the only way I knew how to share it publicly with very little time at my disposal this evening.
The reasons why I am sharing this parallel layout of Jesus' Olivet Discourse are very straightforward:
1) The average Christian in the pews nowadays has little patience to map out the parallels between each verse of Jesus' Olivet Discourse. So here it is. I have copied and pasted it all for you.
2) The average Christian who takes Jesus' teaching seriously, and has been taught in Church (or by reading Christian books) that the so-called "end of the world" is clearly taught in the Olivet Discourse, now has the means by which each version can be carefully traced in context, to see if that is actually so. As I have already noted (here), dozens of very important Church Fathers viewed Matthew 24:4-35 as references to the historical destruction of Jerusalem in AD70 and the historical signs of persecutions and turmoils leading up that cataclysmic event. Most New Testament historical scholars over the last one hundred years concur with that assessment. But then a shift takes place, where virtually all scholars nowadays think that the comments made in Matthew 24:36 and afterward either refer to cataclysmic events in our future, or they are inauthentic and "fanatic" vaticinium ex eventu redactions by later scribes after AD70.
3) I am convinced that there is a third alternative: Jesus was describing the parousia and the "end of the age" as to-be-fulfilled in that generation (cf. Matt. 24:34, Mark 13:30, Luke 21:32).
4) When you have finally studied all of these parallels, matching phrase upon phrase, and following the descriptions of each Gospel author, feel free to study the chapters and verses surrounding the passages in Mark outside of chapter 13, and the passages in Luke outside of chapter 21, as contained in bold-typed brackets below.
I believe that there is absolutely no way to take any portion of this Olivet Discourse of Matthew's Gospel seriously as authentic teachings of Jesus without also seriously studying its parallels in Mark and Luke. That means that there are not two cataclysmic events about "the end" in this Discourse. There is no fulfillment of "the end" that has "already" happened in Matthew 24:4-35 and also a future fulfillment of Christ's parousia in judgment that has "not yet" happened, and still awaiting fulfillment in our future. The "already-not-yet" paradigm advocated by too many Christian tribalists simply cannot be taken seriously when the exact same historical discourse is mapped out in parallel between all three synoptic Gospels.
Take the time. Don't be lazy. See for yourself. Think for yourself.
I have shared other thoughts of mine here and here and here. The thoughts of Church Fathers can be found here.