And they sing {7} the song of Moses the {a} servant of God, and the song of the Lamb, saying, {8} Great and marvellous are thy works, Lord God Almighty; just and true are thy {b} ways, thou King of saints.

(7) That song of triumph, which is Ex 15:2.

(a) So is Moses called for honour's sake, as it is set forth in De 34:10.

(8) This song has two parts: one a confession, both particular, in this verse, and general, in the beginning of the next verse Re 15:4, another, a narration of causes belonging to the confession, of which one kind is eternal in itself, and most present to the godly, in that God is both holy and alone God: another kind is future and to come, in that the elect taken out of the Gentiles (that is, out of the wicked ones and unbelieving: as in Re 11:2 were to be brought to the same state of happiness, by the magnificence of the judgment of God, in Re 15:4.

(b) Thy doings.

People's New Testament

15:3 They sing the song of Moses... and the song of the Lamb. When Israel was delivered from Egypt they sang the song Moses as they had done on the shores of the Red Sea. Here, the spiritual Israel, redeemed, standing on the crystal sea, sings a song of deliverance, but it is the old song to a new strain; the song of the Lamb now; of the Redeemer.

Just and true are thy ways. The salvation of the true worshipers and the judgment seat upon which the wicked beast, demonstrated the truth and justice of God.

Wesley's Notes

15:3 And they sing the song of Moses - So called, partly from its near agreement ,with the words of that song which he sung after passing the Red Sea, Exod 15:11, and of that which he taught the children of Israel a little before his death, Deut 32:3,4. But chiefly because Moses was the minister and representative of the Jewish church, as Christ is of the church universal. Therefore it is also termed the sons of the Lamb. It consists of six parts, which answer each other: Great and wonderful are thy works, Lord God Almighty. For thou only art gracious. Just and true are thy ways, O King of the nations. For all the nations shall come and worship before thee. Who would not fear thee, O Lord, and glorify thy name? For thy judgments are made manifest. We know and acknowledge that all thy works in and toward all the creatures are great and wonderful; that thy ways with all the children of men, good and evil, are just and true. For thou only art gracious - And this grace is the spring of all those wonderful works, even of his destroying the enemies of his people. Accordingly in Psalm 136:1 - 26., that clause, For his mercy endureth for ever, is subjoined to the thanksgiving for his works of vengeance as well as for his delivering the righteous. For all the nations shall come and worship before thee - They shall serve thee as their king with joyful reverence. This is a glorious testimony of the future conversion of all the heathens. The Christians are now a little flock: they who do not worship God, an immense multitude. But all the nations shall come, from all parts of the earth, to worship him and glorify his name. For thy judgments are made manifest - And then the inhabitants of the earth will at length learn to fear him.

King James Translators' Notes

saints: or, nations, or, ages

Jamieson-Fausset-Brown Bible Commentary

3. song of Moses . and . the Lamb-The New Testament song of the Lamb (that is, the song which the Lamb shall lead, as being "the Captain of our salvation," just as Moses was leader of the Israelites, the song in which those who conquer through Him [Ro 8:37] shall join, Re 12:11) is the antitype to the triumphant Old Testament song of Moses and the Israelites at the Red Sea (Ex 15:1-21). The Churches of the Old and New Testament are essentially one in their conflicts and triumphs. The two appear joined in this phrase, as they are in the twenty-four elders. Similarly, Isa 12:1-6 foretells the song of the redeemed (Israel foremost) after the second antitypical exodus and deliverance at the Egyptian Sea. The passage through the Red Sea under the pillar of cloud was Israel's baptism, to which the believer's baptism in trials corresponds. The elect after their trials (especially those arising from the beast) shall be taken up before the vials of wrath be poured on the beast and his kingdom. So Noah and his family were taken out of the doomed world before the deluge; Lot was taken out of Sodom before its destruction; the Christians escaped by a special interposition of Providence to Pella before the destruction of Jerusalem. As the pillar of cloud and fire interposed between Israel and the Egyptian foe, so that Israel was safely landed on the opposite shore before the Egyptians were destroyed; so the Lord, coming with clouds and in flaming fire, shall first catch up His elect people "in the clouds to meet Him in the air," and then shall with fire destroy the enemy. The Lamb leads the song in honor of the Father amidst the great congregation. This is the "new song" mentioned in Re 14:3. The singing victors are the 144,000 of Israel, "the first-fruits," and the general "harvest" of the Gentiles.

servant of God-(Ex 14:31; Nu 12:7; Jos 22:5). The Lamb is more: He is the SON.

Great and marvellous are thy works, &c.-part of Moses' last song (De 32:3, 4). The vindication of the justice of God that so He may be glorified is the grand end of God's dealings. Hence His servants again and again dwell upon this in their praises (Re 16:7; 19:2; Pr 16:4; Jer 10:10; Da 4:37). Especially at the judgment (Ps 50:1-6; 145:17).

saints-There is no manuscript authority for this. A, B, Coptic, and Cyprian read, "of the NATIONS." C reads "of the ages," and so Vulgate and Syriac. The point at issue in the Lord's controversy with the earth is, whether He, or Satan's minion, the beast, is "the King of the nations"; here at the eve of the judgments descending on the kingdom of the beast, the transfigured saints hail Him as "the King of the nations" (Eze 21:27).

Matthew Henry's Concise Commentary

15:1-4 Seven angels appeared in heaven; prepared to finish the destruction of antichrist. As the measure of Babylon's sins was filled up, it finds the full measure of Divine wrath. While believers stand in this world, in times of trouble, as upon a sea of glass mingled with fire, they may look forward to their final deliverance, while new mercies call forth new hymns of praise. The more we know of God's wonderful works, the more we shall praise his greatness as the Lord God Almighty, the Creator and Ruler of all worlds; but his title of Emmanuel, the King of saints, will make him dear to us. Who that considers the power of God's wrath, the value of his favour, or the glory of his holiness, would refuse to fear and honour him alone? His praise is above heaven and earth.