Saint Chrysostom says, "Lest you think that sinners also will be saved, he adds, 'each in his own order.' Hearing of resurrection, do not think that all will receive equal recompense. If not all will bear equal punishment, but very different punishment, then all the more will there be a great difference between sinners and the righteous." Theodoret also writes, "Since he said, 'all will be made alive,' and after the resurrection there will be a separation of those who lived chastely and those who gave themselves to intemperance. Those who suffered from unbelief and those who shone with faith, and, in a word, those who strove toward praiseworthy deeds and those who strove toward blameworthy deeds, he necessarily added. 'each in his own order.' So the Lord also teaches in the holy Gospel that He will set the lambs at His right hand and the goats at His left (Mt 25:33)." So also do all our other interpreters.
This interpretation is justified by the word tagma, which means a military detachment or regiment. It also suggests that the resurrection itself will already indicate to each one his own detachment and regiment, to which he will be carried of himself.
Others connect these words with what follows, as a general indication of the order in which the resurrection will proceed. All will be made alive in Christ, but this vivification will proceed in its own order. First Christ rose. Then, at His second coming, those who belong to Christ will rise. Then comes the end. That is, as some think, the final resurrection of all will follow, including the resurrection of those who remained still unrisen after the resurrection of Christ's own.
As for the meaning of the words "each in his own order," they may be connected in this way, but not in the sense some suppose. They do not signify detachments of those rising, as though Christ rises, then believers, then unbelievers and sinners. Rather, they mean that everything has its own time. All will be made alive in Christ, but not together with the Resurrection of Christ. They will rise in their own time, when their turn comes, and it will come at the second coming of Christ.
Saint Chrysostom says, "Now, after Christ's Resurrection, human affairs remain in their usual order. But then, at the second coming, all will rise, and everything will come to an end." The risen Christ is the firstfruits, in whom the foundation of the universal resurrection is laid and its path is shown. Through this resurrection the final restoration of fallen humanity will be accomplished, and humanity will appear in the glory appointed for it, and in its proper light and perfection.
For this reason the Resurrection of Christ is the pledge of the certainty of all Christian hopes, and therefore Christians glorify it above all. Having risen and ascended into heaven, the Lord commanded us to await His second coming. We await it, every hour and every minute. No one knows when the trumpet that awakens the dead will sound. But when it sounds, all will rise from the graves, or from whatever place their bones have been laid.
Then what the Apostle says will be fulfilled: "then those who believed in Christ," hoi tou Christou, those who are Christ's, "that is, the believing and pious" (Saint Chrysostom). "Not only those who believed in Christ after His Incarnation, but also those who shone with piety and virtue under the law and before the law" (Theodoret).
But this is only one part of saved humanity. Where is the other part, the unbelievers and sinners who perish? Some say that the resurrection of this part is understood in the words, "then the end," which they take to mean: then the final resurrection of all will follow. Thus they introduce two moments of resurrection, and some even two periods separated by a considerable interval of time. This is entirely arbitrary.
There is not even a hint of two resurrections in Scripture. The words "then the end" mean that after the resurrection the end of everything will follow: the judgment, the assignment of the justified and the condemned to their places, the cessation of the present order of being, and the beginning of the new, when a new heaven and a new earth will be revealed. No other thought should even come to mind in connection with these words.
Saint Chrysostom says, "Then everything will come to an end." Theodoret writes, "Then everything will receive its end: both the present order of things and the predictions of the prophets." Where, then, is the resurrection of sinners and unbelievers? It must be understood under the words, "then those who believed in Christ." It must be understood there not exclusively, but including those who are not Christ's.
The whole thought will be this: now Christ has risen, and at His second coming Christ's own will also rise, but certainly not they alone, rather with all other men. It remains only to decide why the Apostle did not mention them separately. We answer: such was his will. He mentioned Christ's own because he was speaking to those who are Christ's and was enlivening their hopes. He passed over those who are not Christ's so as not to darken the bright picture of resurrection, leaving readers to understand them for themselves from what he had said earlier, that in Christ all will be made alive without distinction.
But because he did not mention them, it is wholly unjust to divide the resurrection into two moments, hiding behind a distorted interpretation of "then the end." Saint Chrysostom does not even hint at such moments, and the same seems true of Theodoret. Oecumenius and Theophylact do suppose that the righteous will precede the resurrection of sinners and unbelievers by a little, in order to meet the Lord in the air. Yet since they immediately say that sinners will remain below, they thereby suggest that, in their understanding, the time of the resurrection of the dead will be one: at the coming of the Lord. Only some will come out of the graves first, and others afterward. So all who leave a house are in the same state and act of going out, though some go out first and others after them.
For some unknown reason, modern interpreters like to impose on Saint Paul the idea of two moments, or two times, of the resurrection of the dead.