Romans 15:9-11
And that the Gentiles also may praise God for his mercy. As Scripture says--'Therefore will I make acknowledgment to thee among the Gentiles and sing in honor of thy Name.'
Revelation 5:9
And they are singing a new song--'Thou art worthy to take the book and break its seals, for thou wast sacrificed, and with thy blood thou didst buy for God men of every tribe, and language, and people, and nation,
Revelation 14:3
They are singing what seems to be a new song, before the throne, and before the four Creatures and the Councillors; and no one was able to learn that song except the hundred and forty-four thousand who had been redeemed from earth.