50 I declare to you, brothers and sisters, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable. 51 Listen, I tell you a mystery: We will not all sleep, but we will all be changed— 52 in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed. 53 For the perishable must clothe itself with the imperishable, and the mortal with immortality. 54 When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: “Death has been swallowed up in victory.”[a]
55 “Where, O death, is your victory?
Where, O death, is your sting?”[b]
8
he will swallow up death forever.
14
“I will deliver this people from the power of the grave;
Flesh AND blood certainly do not inherit God’s Kingdom. However, Jesus made certain that the Apostles knew that he was a physical being, not a spirit. He ate with them, He had each one handle Him, touch His wounds and know that while not mortal He was a physical being. When He departed for Heaven for the last time, leaving the believers, some 500 or so that watched His departure, the two angels standing near Him told the crowd that He would return just as He left.
Christ told us that we would be Just like Him. We would be raised up to incorruptible bodies. On the morning of Christ’s Resurrection many of the saints that “slept” had their graves opened and they walked among the believers, they weren’t ghosts, they were physical beings.