1 Thessalonians 4:14

And sayest thou, How is it possible for one that is man not to mourn?… Say not then, "He is perished and shall no more be;" for these be the words of unbelievers; but say, "He sleepeth and will rise again," "He is gone a journey and will return with the King." Who sayeth this? He that hath Christ speaking in him. "For," saith he, "if we believe that Jesus died and rose again" and revived, "even so them also which sleep in Jesus will God bring with Him." If then thou seek thy son, there seek him where the King is, where is the army of the Angels; not in the grave; not in the earth; lest whilst he is so highly exalted, thyself remain grovelling on the ground.

"For if we believe that Jesus died and rose again, even so them also that are fallen asleep in Jesus will God bring with Him." Where are they who deny the Flesh? For if He did not assume Flesh, neither did He die. If He did not die, neither did He rise again. How then does he exhort us from these things to faith? Was he not then according to them a trifler and a deceiver? For if to die proceeds from sin, and Christ did not sin, how does he now encourage us? And now, concerning whom does he say, O men, for whom do ye mourn? For whom do ye sorrow? for sinners, or simply for those who die? And why does he say, "Even as the rest, which have no hope"? For whom do the rest mourn? so that to them all these things are vapid? "The firstborn from the dead" (Col. i. 18), he says, the first-fruits. Therefore there must also be others left. And see how here he introduces nothing from reasonings, because they were docile. For in writing to the Corinthians, he started many things also from reasonings, and then he added, "Thou fool, that which thou sowest is not quickened." (1 Cor. xv. 36) For this is more authoritative, but it is when he converses with the believer. But with him who is without, what authority would this have? "Even so," he says, "them also that are fallen asleep in Jesus will God bring with Him." Again, "fallen asleep": he nowhere says, the dead. But with respect to Christ, his words are, "He died," because there followed mention of the Resurrection, but here "them that are fallen asleep." How "through Jesus"? Either that they fell asleep through Jesus, or that through Jesus will He bring them. The phrase "that fell asleep through Jesus" means the faithful.

The apostle's words show with the utmost clarity that there will be a resurrection of the dead when Christ comes; and assuredly the purpose of his coming will be to judge the living and the dead. But it is continually being asked whether those whom Christ is to find living in this world (represented in the apostle's picture by himself and his contemporaries) are never to die at all, or whether in that precise moment of time when they are caught up in the clouds, along with those rising again, to meet Christ in the air, they will pass with marvelous speed through death to immortality. For it must not be said that it is impossible for them to die and come to life again in that space of time when they are being carried on high through the air.… The apostle himself seems to demand that we should take his words in this sense; that is, we should take it that those whom the Lord will find alive here will undergo death and receive immortality in that brief space of time. He confirms this interpretation when he says, "In Christ all men will be brought to life," and by his statement in another passage, dealing directly with the resurrection of the body: "The seed you sow does not come to life unless it first dies."