1 Corinthians 15:51-53

Listen, I am telling you a mystery: We will not all fall asleep, but we will all be changed, in a moment, in the twinkling of an eye, at the last trumpet.  For the trumpet will sound, and the dead will be raised incorruptible, and we will be changed. For this corruptible body must be clothed  with incorruptibility,  and this mortal body must be clothed with immortality.