Hello iamsoandso,
The GT is Gods tribulation/wrath against those who do or did what?
"Seventy ‘sevens’ are decreed for your people and your holy city to finish transgression, to put an end to sin, to atone for wickedness, to bring in everlasting righteousness, to seal up vision and prophecy and to anoint the Most Holy Place."
So, in Dan.9:24, seventy 'sevens' i.e. seventy sets of seven years, were decreed upon your people (Israel) and your holy city (Jerusalem) and the following is the answer to your question:
To finish transgression, to put an end to sin, to atone for wickedness, to bring in everlasting righteousness, to seal up vision and prophecy and to anoint the Most Holy Place.
Out of those Seventy sets of seven years, seven sets of seven (49 yrs) were completed with the rebuilding of Jerusalem. Followed by sixty two sevens (434 years) with the Messiah being cut of. That fulfilled sixty nine sets of seventy sets of sevens that God had decreed upon Israel and Jerusalem. What remains is that last set of seven years.
When the Messiah was cut off/crucified at the end of the sixty nine sevens, the Lord paused that last seven years and began to build his church, which is still in the process of being built. After the church has been completed, the Lord will descend from heaven and gather his church taking them back to the Father's house according to His promise in John 14:1-3 and 1 Thes.4:13-18. At that time, God will then pick up right where He left of in fulfillment of that last seven years, with the antichrist establishing a seven year agreement with Israel, allowing them to build their temple.
Therefore, that last seven years, which is quickly approaching, will fulfill the following:
"to finish transgression, to put an end to sin, to atone for wickedness, to bring in everlasting righteousness, to seal up vision and prophecy and to anoint the Most Holy Place."
The last 3 1/2 years of that seven year period is referred to as the great tribulation (Matt.24:15-22), which is when the antichrist causes the sacrifices and offerings to cease, sets up that abomination and stands in the temple proclaiming to be God. This is what causes the desolation or emptying of Jerusalem. The entire seven years will come to its end when Jesus returns after God's wrath has been completed, which is shortly after the 7th bowl is poured out.
During that seven years, God will also be pouring out his wrath upon the entire world in the form of the seals, trumpets and bowl judgments, decimating the majority of earth's population and dismantling all human government.
I hope this answers your question brother.