Revelation 15:3

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 (Exodus 15:2).

(a) So is Moses called for honour's sake, as it is set forth in (Deuteronomy 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 (Revelation 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 (Revelation 11:2) were to be brought to the same state of happiness, by the magnificence of the judgment of God, in (Revelation 15:4).

(b) Thy doings.