Verses 1-6 the beginning of the Olivet discourse, 4-6 don't be deceived many shall come in the name of Christ and we have seen many through History. Recently those like David Koresh have said they were the one and came in the name of Christ. Others have come claiming new prophecies etc... it goes on and on. Many have been deceived by them. We hear continually of wars and rumors of wars, these should not trouble us for all this must come to pass. But the end of time is not yet that is time for man doesn't end. Then we see nations rising against nations and famines pestilence and earthquakes in different places all that we see even today. As the increase it singles a time coming. All these are the beginnings of sorrows. 1-8 Many see this point here as the Rapture of the church. The church Snatched away right before the beginning of trial as we see in verse 8 of Matthew 24, taken out so as to be kept from the hour of temptation that is the hour of or time of tribulation which is coming upon all the world. We see that time of trial Revelation 4-5 shows the church in Heaven and the we have chapter 6 and the beginning of the Tribulation. From that point on the church is not mentioned until we see her again in Chapter 19 as the Bride who has prepared herself. We see those who trust in Christ after the Rapture will be be delivered up to affliction and death. Many in the Tribulation who are saved will be killed and hated for the name of Christ. The ultimate in False Prophets will rise in this time. A time of great iniquity as it was in Noah's time and in the time of Lot at Sodom and the 5 surrounding cities. While in this time the 144,000 will be preaching the kingdom in the world for a witness unto all nations then the end comes. The two witnesses seen in Revelation preach during the Great Tribulation that is the last 3 1/2 years. for 1260 days they preach and all hear them. Then the Abomination of Desolation is set up. Israel and believers flee into the wilderness. During this time that is at the same time the 2 witnesses are preaching the gospel and the others who are saved the greatest Tribulation known to the world is occurring. Except that time be shortened which is the last 3 1/2 years is a short time no flesh would be saved if it went longer. But for the sake of the elect of that time it is shortened. Verse 28 we see in fulfilled in Revelation 19-21. Immediately after the tribulation of those the sun and moon are darkened, the stars of heaven, and the powers of the heavens shall be shaken. Then shall appear the sign of the Son of Man in Heaven, Heaven opens the sign of the Son of Man coming, and He comes full force. Then the elect of the Tribulation are gathered. Then shall two together the one taken the other left. We see this fulfilled in All of Matthew 24 fits perfectly with the events on Revelation.