Revelation 15:3

15:3 They sang the song of Moses the servant of God and the song of the Lamb:

“Great and astounding are your deeds,

Lord God, the All-Powerful!

Just and true are your ways,

King over the nations!

Revelation 14:3

14:3 and they were singing a new song before the throne and before the four living creatures and the elders. No one was able to learn the song except the one hundred and forty-four thousand who had been redeemed from the earth.