according to paul flesh and blood is perishable...
so i still don't get the meaning behind the missing body
This sermon by Peter, 52 days after the crucifixion of Christ, on the Day of Pentecost when Jews from every country gathered in Jerusalem, tells us why Jesus' body had to be delivered up. I have not found a crucial reason why our physical body must be entact enough to be delivered up. It looks like the bodily resurrection was a specific instance reserved for Jesus as proof of every believer's salvation:
Acts 2:22-36 (King James Version)
22Ye men of Israel, hear these words; Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know:
23Him, being delivered by the determinate counsel and foreknowledge of God, ye have taken, and by wicked hands have crucified and slain:
24Whom God hath raised up, having loosed the pains of death: because it was not possible that he should be holden of it.
25For David speaketh concerning him, I foresaw the Lord always before my face, for he is on my right hand, that I should not be moved:
26Therefore did my heart rejoice, and my tongue was glad; moreover also my flesh shall rest in hope:
27Because thou wilt not leave my soul in hell, neither wilt thou suffer thine Holy One to see corruption.
28Thou hast made known to me the ways of life; thou shalt make me full of joy with thy countenance.
29Men and brethren, let me freely speak unto you of the patriarch David, that he is both dead and buried, and his sepulchre is with us unto this day.
30Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
31He seeing this before spake of the resurrection of Christ, that his soul was not left in hell, neither his flesh did see corruption.
32This Jesus hath God raised up, whereof we all are witnesses.
33Therefore being by the right hand of God exalted, and having received of the Father the promise of the Holy Ghost, he hath shed forth this, which ye now see and hear.
34For David is not ascended into the heavens: but he saith himself, The Lord said unto my Lord, Sit thou on my right hand,
35Until I make thy foes thy footstool.
36Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ.