Revelation 5:9-10

And they sung a new song, saying, Thou art worthy to take the book and to open its seals, for thou wast killed and hast redeemed to God with thy blood [men] from every tribe and tongue and people and nation,

Revelation 14:3

And they sung a new song before the throne and before the four cherubs and the elders; and no one could learn the song except the hundred and forty-four thousand, who had been redeemed from the earth.

Treasury of Scripture Knowledge

Summary

I will sing a new song unto thee, O God: upon a psaltery and an instrument of ten strings will I sing praises unto thee.

Bible References

Sing a new

Revelation 5:9
And they sung a new song, saying, Thou art worthy to take the book and to open its seals, for thou wast killed and hast redeemed to God with thy blood [men] from every tribe and tongue and people and nation,
Revelation 14:3
And they sung a new song before the throne and before the four cherubs and the elders; and no one could learn the song except the hundred and forty-four thousand, who had been redeemed from the earth.