Ok what do you mean by 144k believers will be shelved. Are they israel now or israel when Jesus came first time or what. 12,000 from Each tribe right. Where are they?
Yes, the 144k are Jews and Jews or Israel doesn't mean a country in middle east and its inhabitants, it simply means believers as described here:
Rom 2:
28A person is not a Jew who is one only outwardly, nor is circumcision merely outward and physical.
29No, a person is a Jew who is one inwardly; and circumcision is circumcision of the heart, by the Spirit, not by the written code. Such a person’s praise is not from other people, but from God.
The 144k are faithful believers who in this end times fully know God, and because they know God, God is going to protect them from the wrath that is wiping out the earth. And, they are God's plan because they form the temple of God where God's spirit and other resurrected believers will dwell forever.
I said before that believers die and resurrected to indwell other believers and unbelievers also die and resurrect to indwell other unbelievers but at the end of it, the wrath of God is going to wipe out all flesh except these 144k who shall escape and with them the resurrected believers in them. This is the point when it shall be fulfilled the prophesy of the OT that that kingdom of earth has become the kingdom of God or the kingdom of God is with men.
The 144k are also called the church of Philadelphia and these promise applies to them:
Rev 3:
7“To the angel of the church in Philadelphia write:
......
10Since you have kept my command to endure patiently, I will also keep you from the hour of trial that is going to come on the whole world to test the inhabitants of the earth.
11I am coming soon. Hold on to what you have, so that no one will take your crown.
12The one who is victorious I will make a pillar in the temple of my God. Never again will they leave it. I will write on them the name of my God and the name of the city of my God, the new Jerusalem, which is coming down out of heaven from my God; and I will also write on them my new name.
13Whoever has ears, let them hear what the Spirit says to the churches.
They are the faithful of God and are saved from the wrath:
Rev 7:
1After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth to prevent any wind from blowing on the land or on the sea or on any tree.
2Then I saw another angel coming up from the east, having the seal of the living God. He called out in a loud voice to the four angels who had been given power to harm the land and the sea:
3“Do not harm the land or the sea or the trees until we put a seal on the foreheads of the servants of our God.”
4Then I heard the number of those who were sealed: 144,000 from all the tribes of Israel.
Rev 14:
1Then I looked, and there before me was the Lamb, standing on Mount Zion, and with him 144,000 who had his name and his Father’s name written on their foreheads.
2And I heard a sound from heaven like the roar of rushing waters and like a loud peal of thunder. The sound I heard was like that of harpists playing their harps.
3And they sang a new song before the throne and before the four living creatures and the elders. No one could learn the song except the 144,000 who had been redeemed from the earth.
This temple of God is also what we call the new Jerusalem:
Rev 21:
9One of the seven angels who had the seven bowls full of the seven last plagues came and said to me, “Come, I will show you the bride, the wife of the Lamb.”
10And he carried me away in the Spirit to a mountain great and high, and showed me the Holy City, Jerusalem, coming down out of heaven from God. .....
15The angel who talked with me had a measuring rod of gold to measure the city, its gates and its walls.
16The city was laid out like a square, as long as it was wide. He measured the city with the rod and found it to be
12,000 stadia c in length, and as wide and high as it is long.
17The angel measured the wall using
human measurement, and it was
144 cubits d thick.
The temple is made of people.