The body that rises is not made of the same substances as the one that was buried, but is immortal and incorruptible. In 2 Corinthians 5, Paul makes the contrast between living in a tent, a temporary home that can be pulled down and put away, and living in a permanent home that will last forever. Our bodies are our temporary tents. Our resurrected bodies will be our permanent homes. They are similar in appearance but different in substance.
Cremation is therefore no hindrance to the resurrection.
Not So while it is possible to quickly dismiss objections, and give a Biblical blessing to cremation, I think that it would be wise to look a little more deeply at the issue. From an emotional perspective, cremation does not logically lead to a more satisfying sense of closure than does burial. Much of the therapeutic value of any funeral ritual depends on cultural conditioning, prior understanding of the death experience, the circumstances of the death itself, the relationship to the deceased, and the emotional make-up of the survivors. In addition, economic considerations should not be valued more highly than ethical or spiritual considerations. I see no data suggesting that we will run out of suitable land for burial sites anytime soon.