However, if you believe Jesus died to redeem the flesh that was born of man, then what you are saying is that your flesh that was born of man will not die and will not return to dust.
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We will indeed return to the earth that gave us and to the dust from which we were made But. . . . .
When Christ was resurrected He was resurrected into His old body. You will recall that the burial wrap was empty. The angels retrieved Him at His tomb.
When Christ arose many of the saints who had already died had their graves opened and they walked among the people they knew in their resurrected bodies. The graves were opened because their bodies were resurrected. I don’t know exactly what that means but it at least means that we will come BACK to life that our bodies and spirits will be RE-united not created new.
When we are resurrected we will be different for sure but we will be ourselves. We will have flesh, immortal flesh but still flesh.
Job makes this clear in chapter 19 verse 27, where he says that though his reins be consumed he will see The Lord with his own eyes and not the eyes of another.
His body did not see corruption, because there was no corruption in Him, you and I on the other hand have a body of flesh that is filled with corruption, (always has been and always will be) that is why we must continue to repent everyday.
And if you say you have no sin then the truth is not in you. The only time someone can say, that someone is no longer sinning is when that someone is laying in a casket.
As for the many saints who had already died had their graves opened and they walked among the people they knew in their resurrected bodies, Like Lazarus they died again later, and went to heaven.