Misconception that the Great Tribulation is 42 months or 1,260 days.
Period of Tribulation
Mat 24:9 "Then they will deliver you up to tribulation and kill you, and you will be hated by all nations for My name's sake."
Mat 24:29 "Immediately after the tribulation of those days the sun will be darkened, and the moon will not give its light; the stars will fall from heaven, and the powers of the heavens will be shaken."
Mat 24:9 is the beginning of the Period of Tribulation and Mat 24:29 is Rapture, So from Mat 24:9-28 is the Period of Tribulation or Wrath of Satan where God allows the Devil to pour His wrath upon mankind for 42 months (Rev 12:12-14: 13:1-9).
The Great Tribulation
Mat 24:15, 21-22 "Therefore when you see the 'abomination of desolation,' spoken of by Daniel the prophet, standing in the holy place" (whoever reads, let him understand)... For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be. And unless those days were shortened, no flesh would be saved; but for the elect's sake those days will be shortened."
So during the Period of Tribulation when we see the Antichrist seated in the temple of God proclaiming himself God, then the Great Tribulation has begun.
Dan 12:11-12 "And from the time that the daily [sacrifice] is taken away, and the abomination of desolation is set up, there shall be one thousand two hundred and ninety days. Blessed is he who waits, and comes to the one thousand three hundred and thirty-five days."
From the removal of the daily call to prayer for Muslims [sacrifice] by removing the Dome on the Rock and the Al-Aqsa Mosque to the temple of God dedicated to the Antichrist (abomination of dedication set up) will be a period of 1,290 days. From the removal of Dome and mosque to Rapture is 1,335 days.
Thus the Period of the Great Tribulation is (1,335-1,290) 45 days
Mat 24:15, 21-22 "Therefore when you see the 'abomination of desolation,' spoken of by Daniel the prophet, standing in the holy place" (whoever reads, let him understand)... For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be. And unless those days were shortened, no flesh would be saved; but for the elect's sake those days will be shortened."
During the building of the temple of God, all godly Christians will not participate in this abomination nor the 'One World Religion' where our Lord Jesus is denied His divinity. They will be persecuted and killed by the people. The Antichrist will pretend to help Christians from martyrdom if they recant (from truth to destruction). Satan is not keen to kill Christians but wants them deceived and be with him in the Lake of fire. During the dedication, the devil will cause fire to come down from heaven to consume the sacrifices (as in the days of King Solomon). Cloud and lightning will fill the temple and when the cloud thins, the TV camera will pick up the Antichrist in full glory seated on the mercy seat. All the Jewish Priesthood and Christian leaders will immediately bow down to worship him. Not many will be able to escape his coming extreme deceptions or great Tribulation.
The Great Tribulation, which is part of the Period of Tribulation or Wrath of Satan, will only begin after the dedication of the temple of God where the Antichrist seated there proclaiming himself God. I thank God that He has reduced it to only 45 days.
