What will happen to living believers when Christ returns in the air?
When Christ returns in the air, believers who are alive and remain will be changed in the last split second. They will join the resurrected dead in Christ as one company, meet the Lord in the air, and go back up into glory with Christ to be with Him.
Les explains that as Christ returns into the air, the dead in Christ will be resurrected and reunited with the soul that has been with Christ in glory. Then, in that last split second, those who are alive and remain will be changed and join that whole company. Together they will go back up into glory with Christ to be with Him. Les distinguishes this coming for the saints in the air from the Second Coming, when Christ comes back with the saints and His feet shall stand upon the Mount of Olives, as Zechariah chapter 14 describes.