What happens to the body after death is largely irrelevant, at least to the deceased. Sure, people can make an idol of your corpse, but that in no way constitutes a sin to you; and if your intent was wrong before death, your spirit is now made perfect in Christ's presence--all the other remaining sins of your nature are done away with as well.
Ben, I disagree. Our bodies are of the flesh, yes. But these fleshly bodies are the very same bodies that will become Spiritual at the final resurrection. (see 1 Corinthians 15)
Let me ask you a question. Was Christ's body "largely irrelevant" while in the grave?
Westminster Shorter Catechism
Q. 37.
What benefits do believers receive from Christ at death?
A. The souls of believers are at their death made perfect in holiness, and do immediately pass into glory; and their bodies, being still united to Christ,[1] do rest in their graves [2] till the resurrection.[3]
Additional Questions from Fisher’s Catechism on SCQ 37
Q. 27. What benefits do believers receive from Christ, at death, with respect to their bodies?
A. Their bodies, being still united to Christ,
do rest in their graves till the resurrection, Isaiah 57:1, 2; Job 19:26.
Q. 28. How does it appear that the bodies of believers in their graves remain still united to Christ?
A. The union was with the person of believers, of which their bodies are a part; and this union being indissoluble, it must still subsist with their bodies in the grave, as well as with their souls in heaven, Isaiah 26:19.
Q. 29. How may believers be assured of this from the union between the two natures in the person of Christ?
A. Because, as at the death of Christ, though his soul was separated from his body, yet neither the one nor the other were separated from his divine person, but remained as firmly united to it as ever; so neither the soul nor body of the believer shall be separated from Christ by their separation from one another at death, but both of them remain indissolubly united to him for ever, Rom. 8:38, 39.
Q. 30. What is the difference of the grave to the righteous and to the wicked?
A. To the one the grave is a resting-place; but to the other it is a prison-house, where they are kept in close custody for the judgment of the great day, Dan. 12:2.
Q. 31. Why are the bodies of the saints said to REST in their graves?
A. Because their graves are like beds of ease, where their bodies lie in safety, till they shall be awakened in the morning of the resurrection, Isaiah 57:2.
Q. 32. How is their resting in the grave expressed in scripture?
A. By “sleeping in Jesus,” 1 Thess. 4:14; intimating, that they sleep in union with Jesus, and that his Spirit keeps possession of every particle of their dust, which he will quicken and rebuild as his temple at the last day, Rom. 8:11.
Q. 33. How long will they rest in their graves?
A. Till the resurrection of all the dead at the great day, John 5:29
Q. 34. How may believers be assured of receiving these promised benefits from Christ at their death?
A. They may be assured of them, upon this ground, that the promises of these benefits to them are all ingrafted upon the promises made to him, as their glorious head, before the world began, 2 Tim. 1:9; Titus 1:2.
Q. 35. Upon what promise made to Christ, is the promise of disarming death, to the dying believer, ingrafted? Hos. 13:14 — “O death, I will be thy plagues.”
A. It is ingrafted upon the promise made to him, of complete victory over death, Isaiah 25:8 — “He will swallow up death in victory.”
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[1] 1 Thess. 4:14. For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.
[2] Isa. 57:2. He shall enter into peace; they shall rest in their beds, each one walking in his uprightness.
[3] Job 19:26. And though after my skin worms destroy this body, yet in my flesh shall I see God: Ver. 27. Whom I shall see for myself, and mine eyes shall behold, and not another; though my reins be consumed within me.
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