Revelation 5:9-14

And they sang a new song, saying, "Worthy art thou to take the book And to open its seals; For thou wast slain and didst ransom for God Men out of every tribe and tongue and people and nation;

Revelation 19:1-6

After this I heard the semblance of the mighty voice of a great multitude in heaven, crying. "Hallelujah! Salvation and glory 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 sang a new song, saying, "Worthy art thou to take the book And to open its seals; For thou wast slain and didst ransom for God Men out of every tribe and tongue and people and nation;
Revelation 19:1
After this I heard the semblance of the mighty voice of a great multitude in heaven, crying. "Hallelujah! Salvation and glory and power Unto the Lord our God!