For the Lord himself shall descend from heaven with a {h} shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:

(h) The word which the apostle uses here, properly signifies that encouragement which mariners give to one another, when they altogether with one shout put forth their oars and row together.

People's New Testament

4:16 For the Lord himself shall descend from heaven. They seemed to have thought that the living saints would hurry to meet the Lord, and that the dead would be powerless to follow. On the contrary, Christ comes to them. He will descend.

With a shout. The voice of an archangel. The voice of command.

With the trumpet of God. The trumpet blast as a signal and a summons.

The dead in Christ shall rise first. Before the living are gathered, all the saints who slept in Christ shall be gathered around him. In the final day, the first act is the gathering of the departed saints; the next, the gathering of the living saints.

Wesley's Notes

4:16 With a shout - Properly, a proclamation made to a great multitude. Above this is, the voice of the archangel; above both, the trumpet of God; the voice of God, somewhat analogous to the sound of a trumpet.

Jamieson-Fausset-Brown Bible Commentary

16. himself-in all the Majesty of His presence in person, not by deputy.

descend-even as He ascended (Ac 1:11).

with-Greek, "in," implying one concomitant circumstance attending His appearing.

shout-Greek, "signal shout," "war shout." Jesus is represented as a victorious King, giving the word of command to the hosts of heaven in His train for the last onslaught, at His final triumph over sin, death, and Satan (Re 19:11-21).

the voice of . archangel-distinct from the "signal shout." Michael is perhaps meant (Jude 9; Re 12:7), to whom especially is committed the guardianship of the people of God (Da 10:13).

trump of God-the trumpet blast which usually accompanies God's manifestation in glory (Ex 19:16; Ps 47:5); here the last of the three accompaniments of His appearing: as the trumpet was used to convene God's people to their solemn convocations (Nu 10:2, 10; 31:6), so here to summon God's elect together, preparatory to their glorification with Christ (Ps 50:1-5; Mt 24:31; 1Co 15:52).

shall rise first-previously to the living being "caught up." The "first" here has no reference to the first resurrection, as contrasted with that of "the rest of the dead." That reference occurs elsewhere (Mt 13:41, 42, 50; Joh 5:29; 1Co 15:23, 24; Re 20:5, 6); it simply stands in opposition to "then," 1Th 4:17. FIRST, "the dead in Christ" shall rise, THEN the living shall be caught up. The Lord's people alone are spoken of here.

Matthew Henry's Concise Commentary

4:13-18 Here is comfort for the relations and friends of those who die in the Lord. Grief for the death of friends is lawful; we may weep for our own loss, though it may be their gain. Christianity does not forbid, and grace does not do away, our natural affections. Yet we must not be excessive in our sorrows; this is too much like those who have no hope of a better life. Death is an unknown thing, and we know little about the state after death; yet the doctrines of the resurrection and the second coming of Christ, are a remedy against the fear of death, and undue sorrow for the death of our Christian friends; and of these doctrines we have full assurance. It will be some happiness that all the saints shall meet, and remain together for ever; but the principal happiness of heaven is to be with the Lord, to see him, live with him, and enjoy him for ever. We should support one another in times sorrow; not deaden one another's spirits, or weaken one another's hands. And this may be done by the many lessons to be learned from the resurrection of the dead, and the second coming of Christ. What! comfort a man by telling him he is going to appear before the judgment-seat of God! Who can feel comfort from those words? That man alone with whose spirit the Spirit of God bears witness that his sins are blotted out, and the thoughts of whose heart are purified by the Holy Spirit, so that he can love God, and worthily magnify his name. We are not in a safe state unless it is thus with us, or we are desiring to be so.