There is an identity that we maintain all our lifetime, and yet there is not one cell in our bodies that was there seven years ago. In the resurrection the bodies of the saints will bear their individual identities. By the new birth we are born again into the Kingdom of God, a Kingdom that can never break down or disintegrate. Because sin can never enter, there is no danger of corruptibility. The resurrection will be the occasion when our bodies become incorruptible and will inherit the Kingdom of God.
Death is written on the face of all that is alive.
The moment we begin to live we commence to die. The report of the birth of a new baby guarantees the digging of a new grave. This is a picture of the body of corruption. Its destiny is death, decay, and dissolution. But if we are to have bodies in Heaven, we must have bodies that are free from corruption.