Revelation 5:9-14

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 19:1-6

AFTER this I heard a loud voice as of a great multitude in heaven, saying, Halleluia, the salvation and glory and power of 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 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 19:1
AFTER this I heard a loud voice as of a great multitude in heaven, saying, Halleluia, the salvation and glory and power of our God,