Revelation 5:9-14

And they sung a new song, saying, Worthy art thou to take the book, and to open its seals; for thou wast slain, and hast redeemed us to God by thy blood, out of every tribe, and tongue, and people, and nation;

Revelation 19:1-6

And after these things I heard a loud voice as of a great multitude in heaven, saying, Alleluia; salvation, and glory, and honor, and power to the Lord our God: for true and righteous are his judgements;

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, Worthy art thou to take the book, and to open its seals; for thou wast slain, and hast redeemed us to God by thy blood, out of every tribe, and tongue, and people, and nation;
Revelation 19:1
And after these things I heard a loud voice as of a great multitude in heaven, saying, Alleluia; salvation, and glory, and honor, and power to the Lord our God: for true and righteous are his judgements;