Revelation 5:9-14

And they sang a new song [which went like this]: "You deserve to take the book and break the seals on it, for you were killed and, with your blood, you purchased people for God from every tribe and language and race and nation,

Revelation 19:1-6

After these things I heard what sounded like the loud voices of a huge crowd in heaven, shouting, "Hallelujah [which means, "Praise God"]! Salvation and splendor and power belong to our God.

Treasury of Scripture Knowledge

Summary

Praise ye the LORD: for it is good to sing praises unto our God; for it is pleasant; and praise is comely.

Bible References

And praise

Revelation 5:9
And they sang a new song [which went like this]: "You deserve to take the book and break the seals on it, for you were killed and, with your blood, you purchased people for God from every tribe and language and race and nation,
Revelation 19:1
After these things I heard what sounded like the loud voices of a huge crowd in heaven, shouting, "Hallelujah [which means, "Praise God"]! Salvation and splendor and power belong to our God.