The seven year great tribulation, which is not found anywhere in scripture, was derived by mans misinterpretation of Daniel 9:24-27. This is what the Bible clearly reveals about the seventy weeks. From vs.24 to vs.27 was seventy weeks or 490 days beginning with Ezra, Ezra chapter 3-6, rebuilding the temple to the time of the Messiah (Jesus Christ) being fulfilled in His birth, death and resurrection. In a sense it was a literal and spiritual temple that was being built. Ezra was teaching the people of the spiritual temple of God that indwelled in all that believed in God and of the coming of Messiah. There was actually a five hundred year span from Ezra till the birth of Jesus that God shut himself off from Israel because of their transgressions towards the Lord, Malachi Chapter 4, but saved a remnant that would believe in the coming of Messiah, Isaiah 10. As still today, God still waits for National Israel to repent and believe in the name of Jesus as they still follow Judaism.
Daniel 9:24-27 the Vision of the Seventy Weeks
Vs. 24 this verse shows us that the timing from Ezra to the cross was 490 days (490 Prophetic years) as within that time Ezra was reestablishing the law in Jerusalem until Jesus had fulfilled the end of transgression, made an end to sin, made reconciliation for iniquity and bring everlasting righteousness and to seal up the prophecy to make an end to the law through the cross.
Vs. 25 from the time of the cross, which also means the last days, which includes what some like to separate and call “The Great Tribulation”, which is not mentioned anywhere in scripture and is not a separate event after the elect of God are caught up, but as the last days so we are in tribulation times until the end of the world as we know it, Acts 2:17; Hebrews 1:1,2; Matthew 24:4-31; Mark 13:24-31; Luke 21:5-36. These are just some of the scriptures that support that we will go through all things of Rev Chapter 6-21. Everyone will have opportunity to come unto salvation through Jesus Christ if they would only believe until the door of salvation is closed when Jesus calls us and we meet him in the clouds, which after this time no one can be saved, Matthew 25:10.
Vs.26 after 434 years that end in the year AD29 shall Messiah be cut off. Jesus was crucified after he was baptized in AD 29 three and a half years later. Jesus was cut off (killed) by the people of the prince, which means National Israel or other words the Pharisees, Sanhedrin and the high priest that destroy the city and the sanctuary (meaning Christ) and the end thereof shall be with a flood (Gods wrath) that will put an end to abominations by desolation or in other words a ruin to evil deeds. Daniel 9:27 explains the definitions of desolation of abominations or the ruin of evil deeds. There is no actual Desolations of Abominations where the so called Antichrist will take a literal throne, but the desolation will be when the son of perdition, being the false prophet, tries to take his throne in Jerusalem, Daniel 11:36-45. Gods’ word never defines one great Antichrist, but says there are many antichrists, 1John2:18; 11 Thessalonians 2:1-12; Revelation 11:7. The seven years that some call the seven year tribulation means three and a half years beginning with the first six seals being the beginning of sorrows (first woe). The last three and a half years starting with the (second woe) with the sounding of the first trumpet and ending with the seventh trumpet that includes everything else written in Revelations that includes the time of Christ return for His Bride in Rev 19, up to the end when Satan is cast into the lake of fire with the beast and the false prophet and ends with the new Jerusalem being ushered down as then we will be with the Lord forever.
Vs.27 the 70th seven began with Christ baptism in AD 29 and three years later at the end of the first half of the 70th seven sacrifices and offering ceased because Christ hung on the cross. From the giving of the law in 458BC when Ezra went to establish the law, or to rebuild the spiritual city right to the cross where the first 69 sevens. The 70th seven is from the time of the cross until Jesus comes back in the air to call his Bride home and for the overspreading of abominations he will make desolate, or make an end to all who would not believe.