The believer is made spiritually alive by the Holy Spirit. Although he has the power to overcome sin, he will still experience physical death. The Apostle Paul described the dead in Christ as those who sleep in Christ. In the day of the resurrection, when Jesus returns, God has promised the dead in Christ will be awakened by a physical resurrection of their mortal bodies. And those who are physically alive, during the time of Christ return, will not experience death, but will be clothed with an incorruptible, glorious, resurrection body.