First, I would like to ask you to read 1 Corinthians 15:35-58.
Paul's answer to that question is going to be that the dead will rise with a body with some elements of continuity and some of discontinuity with the body they had in this world. Now resurrection was simply inconceivable to the Greco-Roman culture, its prevailing philosophies were all against it, and so Paul uses illustrations from common life to illustrate his doctrine. Taking all from v. 38 together, the points Paul makes are that the resurrection body will be of a genuinely human type not the body of some different order of being, but that it will be a body different in wonderful ways from the body human beings have in this world. It will be different precisely because we will no longer have the weaknesses and limitation of our human bodies. The new body will be immortal, glorious, powerful, and spiritual. What is meant is it will be a body animated and empowered by the Holy Spirit, that is, it will be a supernatural body. To put "spiritual" together with "body" in Corinth in those days must have had shock value. For the Greeks spirit and body were two completely different realms of reality. Notice that Paul's conclusion points out that the bodies we have now are not adequate for the life of heaven. Paul finishes by encouraging us that Christ's victory over sin and death is sure and certain, if we hold fast to him our work in this world will not be in vain. We must wait for the resurrection, but because we know it is coming we may live and work in confidence and hope.