3 And [kai] they sing [ado] the song [ode] of Moses [Moseus] the servant [doulos] of
God, [theos] and [kai] the song [ode] of the Lamb,
[arnion] saying, [lego] Great [megas] and [kai] marvellous [thaumastos] are
thy [sou] works, [ergon] Lord [kurios] God [theos] Almighty; [pantokrator] just
[dikaios] and [kai] true [alethinos] are thy [sou] ways, [hodos] thou King [basileus] of saints. [hagios] KJV-Interlinear
3 And they
sang the song of Moses the bond-servant of God and the song of the Lamb,
saying, "Great and marvelous are Thy works, O Lord God, the Almighty;
Righteous and true are Thy ways, Thou King of the nations. NASB
The song of Moses is found at Ex. 15. The song of the Lamb is essentially the same thing, however the song of the Lamb is also expressed in Rev. 5, where the crescendo of voices are heard altogether in heaven.
And although the words of these two verses are not an exact match, that is not the point of this message. The theme and the message and the attitude expressed in them is the point.
Both speak of deliverance and salvation and victory. One from the manward side, and the other from the Godward side.
The song of Moses is historically set at the time of the Exodus, where the Israelites were trapped against the waters of the Red Sea. Faced with certain destruction, God parted the waters, stacking them up on either side of a dry path, making way for their escape. The waters then collapsed and fell back on the Egyptians, killing them all and destroying the enemy of the Israelites in one swift battle, in which not one Israelite had to fight.
This is a song of victory in deliverance, while also being a song of judgment.
The song of the Lamb, the song from Gods perspective, is a song of redemption, faithfulness, deliverance and also judgment.
The song of Moses was sung at the Red Sea - deliverance from turmoil. The song of the Lamb will be sung on a crystal sea - deliverance into peace.
The song of Moses is one of triumph over sin (Egypt). The song of the Lamb is one of triumph over evil (anti-christ).
The song of Moses sings of God bringing His people out of the world. The song of the Lamb sings of God bringing his people into heaven.
Both songs honor and remember the deliverance of believers, the destruction of the enemy, the expectations of believers, and the adulation of the Lord.
The song of Moses is the first song in anticipation of Gods plan. The song of the Lamb is the last and final song of the completion of Gods plan.