God is not finished with Israel and prophecy has to be fulfilled about Israel here on earth. All prophecy has to be fulfilled., that is God's way, He always finishes what He starts. That is what is going on with Israel.
The church is made up of anyone who personally receives Jesus while in this time before He comes for His bride (the church) Israel will not accept the Messiah during this time., but individual Jewish believers have accepted Jesus as Messiah., as their personal Savior just like we who have been grafted in.
But the bride (the church) will not be here when the tribulation begins. We will be with Christ in heaven. Later when He comes back a 2nd time., we will be with Him. The church is not Israel and Israel is not the church. There is a difference between the nation of Israel in prophecy and individual Jewish people who have and who will receive Christ before the tribulation.