I Corinthians 15:35 But some man will say, How are the dead raised up? and with what body do they come?
Why would Paul mention the dead being raised?
I Corinthians 15:36 Thou fool, that which thou sowest is not quickened, except it die:
37 And that which thou sowest, thou sowest not that body that shall be, but bare grain, it may chance of wheat, or of some other grain:
38 But God giveth it a body as it hath pleased him, and to every seed his own body.
39 All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes, and another of birds.
40 There are also celestial bodies, and bodies terrestrial: but the glory of the celestial is one, and the glory of the terrestrial is another.
41 There is one glory of the sun, and another glory of the moon, and another glory of the stars: for one star differeth from another star in glory.
42 So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption: 43 It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power:
44 It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
45 And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit.
46 Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
47 The first man is of the earth, earthy: the second man is the Lord from heaven.
48 As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly.
49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly.
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.
Look at verse 50, notice what it says "flesh and blood cannot inherit the kingdom of God".
Remembers Jesus said something similar to this in John chapter 3.
Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God. This is the Fathers Kingdom, which Jesus spoke of. During the Lord's thousand-year reign with the saint, flesh and blood beings will still be on the earth along with spirit beings.
There will be only spirit beings after the second resurrection. Remember what
Nicodemus asked the Lord? He asked Him, " how could a man be born again when he was already old?" And the Lord answered by saying, "Verily, verily, I say unto thee, except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. That which is born of the flesh is flesh; and that which is born of the Spirit is spirit. Marvel not that I said unto thee, Ye must be born again. The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit.”
In order for you to be born again you must be changed into a spiritual body