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).

JFB.