In {e} a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.

(e) He shows that the time will be very short.

People's New Testament

15:52 In a moment, in the twinkling of an eye. The change will be instantaneous.

At the last trump. See 1Th 4:16.

The trumpet shall sound. This signal for the close of all earthly things. See Mt 24:31.

Wesley's Notes

15:52 In a moment - Amazing work of omnipotence! And cannot the same power now change us into saints in a moment? The trumpet shall sound - To awaken all that sleep in the dust of the earth.

Scofield Reference Notes

[1] raised

Resurrection, Summary:

(1) The resurrection of the dead was believed by the patriarchs Gen 22:5 Heb 11:19 Job 19:25-27 and revealed through the prophets Isa 26:19 Dan 12:2,13 Hos 13:14 and miracles of the dead restored to life are recorded in the O.T. 2Ki 4:32-35 13:21.

(2) Jesus Christ restored life to the dead Mt 9:25 Lk 7:12-15 Jn 11:43,44 and predicted His own resurrection Jn 10:18 Lk 24:1-8.

(3) A resurrection of bodies followed the resurrection of Christ Mt 27:52,53 and the apostles raised the dead Acts 9:36-41 20:9,10.

(4) Two resurrections are yet future, which are inclusive of "all that are in the graves" Jn 5:28. These are distinguished as "of life" 1Cor 15:22,23 1Th 4:14-17 Rev 20:4 and "of judgment" Jn 5:28,29 Rev 20:11-13. They are separated by a period of one thousand years Rev 20:5. The "first resurrection," that "unto life," will occur at the second coming of Christ 1Cor 15:23 the saints of the O.T. and church ages meeting Him in the air 1Th 4:16,17 while the martyrs of the tribulation, who also have part in the resurrection Rev 20:4 are raised at the end of the great tribulation.

(5) The mortal body will be related to the resurrection body as grain sown is related to the harvest 1Cor 15:37,38 that body will be incorruptible, glorious, powerful, and spiritual 1Cor 15:42-44,49.

(6) The bodies of living believers will, at the same time, be instantaneously changed 1Cor 15:50-53 Phil 3:20,21. This "change" of the living, and resurrection of the dead in Christ, is called the "redemption of the body" Rom 8:23 Eph 1:13,14.

(7) After the thousand years the "resurrection unto judgment" Jn 5:29 occurs. The resurrection-body of the wicked dead is not described. They are judged according to their works, and cast into the lake of fire. Rev 20:7-15.

Jamieson-Fausset-Brown Bible Commentary

52. the last trump-at the sounding of the trumpet on the last day [Vatablus] (Mt 24:31; 1Th 4:16). Or the Spirit by Paul hints that the other trumpets mentioned subsequently in the Apocalypse shall precede, and that this shall be the last of all (compare Isa 27:13; Zec 9:14). As the law was given with the sound of a trumpet, so the final judgment according to it (Heb 12:19; compare Ex 19:16). As the Lord ascended "with the sound of a trumpet" (Ps 47:5), so He shall descend (Re 11:15). The trumpet was sounded to convoke the people on solemn feasts, especially on the first day of the seventh month (the type of the completion of time; seven being the number for perfection; on the tenth of the same month was the atonement, and on the fifteenth the feast of tabernacles, commemorative of completed salvation out of the spiritual Egypt, compare Zec 14:18, 19); compare Ps 50:1-7. Compare His calling forth of Lazarus from the grave "with a loud voice," Joh 11:43, with Joh 5:25, 28.

and-immediately, in consequence.

Matthew Henry's Concise Commentary

15:51-58 All the saints should not die, but all would be changed. In the gospel, many truths, before hidden in mystery, are made known. Death never shall appear in the regions to which our Lord will bear his risen saints. Therefore let us seek the full assurance of faith and hope, that in the midst of pain, and in the prospect of death, we may think calmly on the horrors of the tomb; assured that our bodies will there sleep, and in the mean time our souls will be present with the Redeemer. Sin gives death all its hurtful power. The sting of death is sin; but Christ, by dying, has taken out this sting; he has made atonement for sin, he has obtained remission of it. The strength of sin is the law. None can answer its demands, endure its curse, or do away his own transgressions. Hence terror and anguish. And hence death is terrible to the unbelieving and the impenitent. Death may seize a believer, but it cannot hold him in its power. How many springs of joy to the saints, and of thanksgiving to God, are opened by the death and resurrection, the sufferings and conquests of the Redeemer! In verse 58, we have an exhortation, that believers should be stedfast, firm in the faith of that gospel which the apostle preached, and they received. Also, to be unmovable in their hope and expectation of this great privilege, of being raised incorruptible and immortal. And to abound in the work of the Lord, always doing the Lord's service, and obeying the Lord's commands. May Christ give us faith, and increase our faith, that we may not only be safe, but joyful and triumphant.