(Jeremiah 30:7; Daniel 9)
The great tribulation is a period of seven years reserved for the Jewish nation, when God will refine and redeem Israel. Daniel 9: 24-27, Zachariah 12-13). The Bible registers the period of seven years of tribulation in chapter 12 verse 1 of Daniel: And at that time [of the end] Michael shall arise, the great prince who defends and has charge of your people. And there shall be a time of straightness and distress such as never was since there was a nation till that time. But at that time your people shall be delivered, everyone whose name shall be found written in the Book.
One cannot refute neither change the Word of God spoken through His prophets of old, who faithfully warned of disasters coming for this nation. This prophecy against Israel was also uttered by Moses even before they entered the Promised Land. We read in Deuteronomy 4:30 the following: When you are in tribulation and all these things come upon you in the latter days you will turn to the Lord your God and be obedient to His voice. The Prophet Zachariah echoes the words of Moses when he prophesized the tribulation and deliverance of Israel. Zachariah 12 and 13). And in all the land, says the Lord, two-thirds shall be cut off and perish, but one-third shall be left alive; and I will bring the third part through the fire, and will refine them as silver is refined and will test them as gold is tested. They will call on My name, and I will hear and answer them. I will say, It is My people; and they will say, The Lord is my God (Zachariah 13:8-9). And I will pour out upon the house of David and upon the inhabitants of Jerusalem the spirit of grace and supplication. And they shall look upon Me Whom they have pierced, and they shall mourn for Him as one who mourns for his only son, and shall be in bitterness for Him as one who is in bitterness for his firstborn. In that day shall there be a great mourning in Jerusalem, as the mourning of [city of] Hadadrimmon in the Valley of Megiddo [over beloved King Josiah]. And the land shall mourn, every family apart…(Zachariah 12:10-12a).
The purposes and reason for the great tribulation are found in Daniel 9: 24: Seventy weeks have been decreed for your people and your holy city, (Israel (Judah) and Jerusalem) to finish the transgression, to make an end of sin, to make atonement for iniquity and to bring in an everlasting righteousness and seal up vision and prophecy and to anoint the most holy place. Seventy weeks have been decreed for Israel, which started from the time of “the going forth of the commandment to restore and to build Jerusalem until [the coming of] the anointed One, (YAHSHUA) a Prince, shall be seven weeks [of years] and sixty-two weeks [of years]; it shall be built again with [city] square and moat, but in troublous times (found in the history of the Jews when they returned from exile in the book of Nehemiah and Esdras). After the sixty-two weeks [of years] shall the Anointed One be cut off or killed and shall have nothing belonging to Him. (YAHSHUA died in the period of the sixty-ninth week [of years] which was the week of years before the final week of years of seventy weeks of years reserved for the Jewish nation) (Daniel 9: 24-26).