Revelation 5:9-14

and they sung a new song, saying, "thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood, out of every tribe, and language, and people, and nation;

Revelation 19:1-6

And after these things I heard a great voice of a numerous multitude in heaven, saying, "alleluia; salvation, glory, honour, and power unto the Lord 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 the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood, out of every tribe, and language, and people, and nation;
Revelation 19:1
And after these things I heard a great voice of a numerous multitude in heaven, saying, "alleluia; salvation, glory, honour, and power unto the Lord our God: