Our mortal bodies, flesh and bones, will return to the earth. As the writer of Ecclesiastes says: “Everything goes to the same place, everything comes from the dust, everything returns to the dust” (Ecclesiastes 3:20). Still, all that we have lived in our bodies will be honored in the resurrection, when we receive new bodies from God.
What sorts of bodies will we have in the resurrection? Paul sees our mortal bodies as the seeds for our resurrected bodies: “What you sow must die before it is given new life; and what you sow is not the body that is to be, but only a bare grain, of wheat I dare say, or some other kind; it is God who gives it the sort of body that he has chosen for it, and for each kind of seed its own kind of body” (1 Corinthians 15:36-38). We will be as unique in the resurrection as we are in our mortal bodies, because God, who loves each of us in our individuality, will give us bodies in which our most unique relationship with God will gloriously shine.