Yes, the slain from out of the tribulation. We agree that they come out of the great tribulation. We agree that they were left behind at the gathering of the holy. We do not agree as to if they are vessels of dishonor. These verses do not describe a vessel of dishonor in my opinion:
And I saw the souls of those who had been beheaded for their testimony about Jesus and for proclaiming the word of God. They had not worshiped the beast or his statue, nor accepted his mark on their foreheads or their hands. They all came to life again, and they reigned with Christ for a thousand years.
I understand your disagreement, but those coming out of the great tribulation are called vessels unto dishonor or the least in the kingdom of Heaven is because they missed out in being ready for the Bridegroom to be received as vessels unto honor.
Those of the firstfruits of the resurrection will be like the angels that never die, nor given in marriage, sit at the Marriage Supper of the Lamb in Heaven, have a mansion in the Father's house, thus having a place in the City of God that will come down from Heaven to dwell on the earth. That is why they are called vessels unto honor.
Luke 20:34 And Jesus answering said unto them, The children of this world marry, and are given in marriage: 35 But they which shall be accounted worthy to obtain that world, and the resurrection from the dead, neither marry, nor are given in marriage: 36 Neither can they die any more: for they are equal unto the angels; and are the children of God, being the children of the resurrection.
Those coming out of the great tribulation only have the power of the second death ( lake of fire ) not over them; which infers physical death still. They and their future generations will visit the tree of life in that City of God for the healing of the nations. They will serve the King of kings having been chastened by the Father and given stripes for which they will never sin those sins again in raising up the millennium by examples from various places all over the world. Because they were left behind, that is why they are called the vessels unto dishonor; vessels of wood & earth, that are in His House.
There is a glorified celestial inheritance and a glorified terrestrial inheritance until the very end at the Great White Throne judgment when Satan is cast into the lake of fire with death and hell, is when the glorified terrestrial inheritance will live forever with no chance of dying after that point.
Anyway, if you understand my application from His words and yet still disagree, then we can agree to disagree since we all prophesy in part and know in part but the point of truth now is to look to Jesus Christ, the author & finisher of our faith to help us be ready & to be willing to go to be received by the Bridegroom as vessels unto honor in His House.
2 Corinthians 5:7 (For we walk by faith, not by sight
8 We are confident, I say, and willing rather to be absent from the body, and to be present with the Lord.9 Wherefore we labour, that, whether present or absent, we may be accepted of him.10 For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.11 Knowing therefore the terror of the Lord, we persuade men; but we are made manifest unto God; and I trust also are made manifest in your consciences.