Revelation 15:3

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 [Rom 8:37] shall join, Rev 12:11) is the antitype to the triumphant Old Testament song of Moses and the Israelites at the Red Sea (Exo. 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.

— Jamieson-Fausset-Brown Commentary (public domain)