Just like a seed has to die in order to grow into something useful, we have to die to sin before we can grow in the Lord.
As well, if we have Holy Spirit in us, when our earthly bodies pass away, we will receive glorified spiritual bodies in heaven...
And just like the angels, our heavenly bodies will be imperishable...
From this we see:
- there are earthly bodies and there are heavenly bodies (1 Cor.15:40)
- just like the angels, our heavenly bodies will be imperishable (1 Cor.15:52)
- believers will receive their imperishable bodies at the rapture (1 Cor.15:52)
Personal experience: I have heard various friends and family members mention that they didn't want to be cremated or scattered about after death because then at the rapture they would not have a body.
Well, here we can clearly see and understand that all believers will be leaving behind their earthly bodies anyway and receiving much, much, MUCH better ones!!!
My earthly body is merely a vehicle for me to get around in right now. Although because this is a resource that God has given to me to use, I want to be a good steward and try to be as healthy and in shape as I can. But my priority is my spirit and soul which is the essence of who I am.