Answer: We who are perishable and die will be clothed with the imperishable, and we who are mortal mankind will become immortal, living throughout eternity, (verse 53 and 54).
MORE INFORMATION AND/OR OTHER SCRIPTURE REFERENCES:
1 Corinthians 15:42-50 describes this difference in what is perishable and imperishable, what is mortal and immortal, what is natural and weak and what is spiritual and raised in power:
"So will it be with the resurrection of the dead. The body that is sown is perishable, it is raised imperishable; it is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in power; it is sown a natural body, it is raised a spiritual body. If there is a natural body, there is also a spiritual body. So it is written: ‘The first man Adam became a living being'; the last Adam, a life-giving spirit. The spiritual did not come first, but the natural, and after that the spiritual. The first man was of the dust of the earth, the second Man from heaven. As was the earthly man, so are those who are of the earth; and as is the Man from heaven, so also are those who are of heaven. And just as we have borne the likeness of the earthly man, so shall we bear the likeness of the Man from heaven. I declare to you, brothers, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable."