Revelation 5:9-10

singing a new song: "Thou deservest to take the scroll and open its seals, for thou wast slain and by shedding thy blood hast ransomed for God men from every tribe and tongue and people and nation;

Revelation 14:3

they were singing a new song before the throne and before the four living Creatures and the Presbyters, and no one could learn that song except the hundred and forty-four thousand who had been ransomed from 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
singing a new song: "Thou deservest to take the scroll and open its seals, for thou wast slain and by shedding thy blood hast ransomed for God men from every tribe and tongue and people and nation;
Revelation 14:3
they were singing a new song before the throne and before the four living Creatures and the Presbyters, and no one could learn that song except the hundred and forty-four thousand who had been ransomed from earth.