1 Corinthians 15:20-22
15:20 But now Christ has been raised from the dead, the firstfruits of those who have fallen asleep.
15:21 For since death came through a man, the resurrection of the dead also came through a man.
15:22 For just as in Adam all die, so also in Christ all will be made alive.
1 Corinthians 15:51-54
15:51 Listen, I will tell you a mystery: We will not all sleep, but we will all be changed –
15:52 in a moment, in the blinking of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised imperishable, and we will be changed.
15:53 For this perishable body must put on the imperishable, and this mortal body must put on immortality.
15:54 Now when this perishable puts on the imperishable, and this mortal puts on immortality, then the saying that is written will happen, “Death has been swallowed up in victory.”