And the Levites…stood up to praise the Lord God of Israel with a loud voice on high. – II Chronicles 20:19
After this I beheld, and lo, a great multitude which no man could number, of all nations, and kindreds, and people, and tongues, stood before the throne and the Lamb, clothed with white robes, and palms in their hands; and cried with a loud voice, saying, Salvation to our God which sitteth upon the throne, and unto the Lamb. – Revelation 7:9-10